Jennifer Garner and Josh Duhamel on laughing off dating rumors while working on 'Love, Simon' (Exclusive)

Jennifer Garner and Josh Duhamel know there is absolutely no truth to any dating rumors between the two, but they do have a great admiration for one another!

ET recently spoke to the two stars about their new film, Love, Simon -- in which they play parents to their son, Simon, a closeted gay teenager dealing with high school -- as well as actor Nick Robinson, who plays Simon. Garner and Duhamel joked about the inevitable dating rumors that surrounded them, due to their highly publicized splits from Ben Affleck and Fergie, respectively.

"We're going to church, the whole thing," Duhamel cracked to ET's Cameron Mathison about him and his co-star.

"Yeah, I know, did you know you were a Methodist?" Garner quipped back.

On a more serious note, Duhamel said he admires the mother of three as a person, and payed her a heartfelt compliment.

See photos of Jennifer Garner:

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Jennifer Garner out and about
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Jennifer Garner attends the 2018 Vanity Fair Oscar Party following the 90th Academy Awards at The Wallis Annenberg Center for the Performing Arts in Beverly Hills, California, on March 4, 2018. / AFP PHOTO / JEAN-BAPTISTE LACROIX (Photo credit should read JEAN-BAPTISTE LACROIX/AFP/Getty Images)
HOLLYWOOD, CA - MARCH 04: Jennifer Garner arrives at the 90th Annual Academy Awards at Hollywood & Highland Center on March 4, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - FEBRUARY 13: Jennifer Garner is seen on February 13, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 13: Jennifer Garner is seen on February 13, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 29: Jennifer Garner is seen on January 29, 2018 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - NOVEMBER 21: Jennifer Garner attends the Screening Of IFC Films' 'The Tribes Of Palos Verdes' at the Ray Kurtzman Theater on November 21, 2017 in Los Angeles, California. (Photo by Christopher Polk/Getty Images)
LOS ANGELES, CA - NOVEMBER 17: Actress Jennifer Garner attends the premiere of 'The Tribes of Palos Verdes' at The Theatre at Ace Hotel on November 17, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - NOVEMBER 17: (L-R) Joe Keery, Maika Monroe and Jennifer Garner attend the premiere of 'The Tribes of Palos Verdes' at The Theatre at Ace Hotel on November 17, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - NOVEMBER 12: Jennifer Garner is seen on November 12, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
CULVER CITY, CA - NOVEMBER 11: Actress Jennifer Garner attends the 2017 Baby2Baby Gala at 3LABS on November 11, 2017 in Culver City, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
NEW YORK, NY - OCTOBER 19: Actress Jennifer Garner is seen walking in Soho on October 19, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - OCTOBER 18: Actress and Save the Children Trustee Jennifer Garner attends the 5th Annual Save the Children Illumination Gala at the American Museum of Natural History on October 18, 2017 in New York City. (Photo by Noam Galai/Getty Images for Save The Children)
NEW YORK, NY - OCTOBER 18: Actress Jennifer Garner is seen walking in Soho on October 18, 2017 in New York City. (Photo by Raymond Hall/GC Images)
LOS ANGELES, CA - OCTOBER 15: Jennifer Garner is seen on October 15, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
EAST HAMPTON, NY - OCTOBER 06: Actors Jennifer Garner and Maika Monroe attend the red carpet for 'The Tribes of Palos Verdes' at UA2 East Hampton Cinema 6 during Hamptons International Film Festival 2017 - Day Two on October 6, 2017 in East Hampton, New York. (Photo by Eugene Gologursky/Getty Images for Hamptons International Film Festival)
LOS ANGELES, CA - AUGUST 23: Jennifer Garner is seen on August 23, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - SEPTEMBER 12: Jennifer Garner is seen on September 12, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - AUGUST 01: Jennifer Garner and Ben Affleck's mother Christine Anne Boldt are seen on August 1, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JULY 26: Jennifer Garner is seen on July 26, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JULY 02: Jennifer Garner is seen on July 02, 2017 in Los Angeles, California. (Photo by BG004/Bauer-Griffin/GC Images)
BEVERLY HILLS, CA - JUNE 06: Jennifer Garner attends NET-A-PORTER x Draper James Event on June 6, 2017 in Beverly Hills, California. (Photo by Stefanie Keenan/Getty Images for NET-A-PORTER)
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"We're both private people," he noted. "I laugh at it [the rumors]. Jen is an amazing catch. She deserves somebody far better than me."

Duhamel and Garner stressed the importance of their upcoming film, specifically, how they play understanding and supportive parents to a teenager coming out. 

"I will say that playing a mom that handles her child coming out as beautifully as this character does is kind of the fantasy version of what you want a mom to say, and I selfishly wanted to say those lines," Garner admitted. "I wanted it to be me because I feel that for moms or dads or anyone who sees us ... or wonders how they would handle it, this is a beautiful template, you know?"

As for Duhamel, he says the message of unconditional love is what sticks with him the most, especially given his own role as a father to his 4-year-old son, Axl.

"What I liked about this guy is that he's like a lot of guys out there," Duhamel noted. "He's not homophobic, but it doesn't cross his thought process that his son would be gay, so he makes some gay jokes that he regrets later, but I think what he learns in the process is that he loves his son no matter what."

"Now that I'm a dad -- that obviously helps -- but there's a scene in particular where he sort of has a conversation where he talks about... 'Listen, I'm sorry if I ever said anything or did anything that made you feel uncomfortable, but I love you no matter what,'" he continued. "And I think that's really what any guy or any parent can learn from this."

See photos of Josh Duhamel and ex Fergie:

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Josh Duhamel and Fergie together
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Josh Duhamel and Fergie together
Actor Josh Duhamel (L) and his wife singer Fergie arrives at The Clinton Foundation Gala in celebration of the organization's "Decade of Difference" in Los Angeles October 14, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: ENTERTAINMENT)
LAS VEGAS - DECEMBER 31: Actor Josh Duhamel and Fergie of the Black Eyed Peas attend New Year's Eve at LAX Nightclub on December 31, 2009 in Las Vegas, Nevada. (Photo by Chris Weeks/WireImage)
***WORLD EXCLUSIVE*** 18/01/09. After leaving their Malibu wedding party after 2 in the morning Sunday, Fergie and her new husband ? the freshly minted Mr. and Mrs. Josh Duhamel ? left that same afternoon for a tropical honeymoon. The Black Eyed Peas singer, 33, and the Las Vegas actor, 36, had tied the knot at the Church Estates Vineyards in Malibu. The newlyweds left Los Angeles International airport with 2 stops, Paris and Doha to arrive at Male international airport, their final destination on January 14. The couple was welcomed by the manager of the One&Only Maldives Resort at reethi Rah after a short trip by boat. One & Only Reethi Rah Hotel is a chic resort offering a level of style and sophistication unsurpassed in the Maldives. Set on one of the largest islands in North Male' Atoll, adorned with endless white sand coves and turquoise bays, all villas hav (Photo by Philip Ramey/Corbis via Getty Images)
NOVEMBER 8: Josh Duhamel and Fergie attend GLAMOUR Women of the Year Red-Carpet Arrivals at Carnegie Hall NYC on November 8, 2010 in New York City. (Photo by CHANCE YEH/Patrick McMullan via Getty Images)
LAS VEGAS - DECEMBER 31: Fergie of the Black Eyed Peas and actor Josh Duhamel attend New Year's Eve at LAX Nightclub on December 31, 2009 in Las Vegas, Nevada. (Photo by Chris Weeks/WireImage)
WESTWOOD, CA - DECEMBER 09: Josh Duhamel and Stacy 'Fergie' Ferguson attends the 'NINE' Los Angeles Premiere at Mann Village Theatre on December 9, 2009 in Westwood, California. (Photo by Steve Granitz/WireImage)
RNPS IMAGES OF THE YEAR 2011 - Cast member Josh Duhamel and his wife, Fergie, pose during the premiere of "New Year's Eve" at the Grauman's Chinese theatre in Hollywood, California, December 5, 2011. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
HOLLYWOOD, CA - DECEMBER 08: Actor Josh Duhamel (L) and singer Fergie arrive at the TrevorLIVE Los Angeles Benefit celebrating the Trevor Project's 15th anniversary at the Hollywood Palladium on December 8, 2013 in Hollywood, California. (Photo by Amanda Edwards/WireImage)
LOS ANGELES, CA - NOVEMBER 02: Singer Fergie and actor Josh Duhamel arrives at the LACMA 2013 Art + Film Gala on November 2, 2013 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - DECEMBER 12: Fergie and Josh Duhamel are seen on December 12, 2013 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
NEW YORK, NY - JUNE 10: Fergie Duhamel and Josh Duhamel attend the amfAR Inspiration Gala New York 2014 at The Plaza Hotel on June 10, 2014 in New York City. (Photo by Gilbert Carrasquillo/FilmMagic)
LOS ANGELES, CA - MARCH 30: Josh Duhamel and Fergie Duhamel are seen on March 30, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
INGLEWOOD, CA - JANUARY 17: Actor Josh Duhamel and singer Fergie attend the Eagles concert and after party during The Forum Grand Opening at The Forum on January 17, 2014 in Inglewood, California. (Photo by Lester Cohen/WireImage)
LOS ANGELES, CA - MAY 17: Fergie and Josh Duhamel are seen on May 17, 2014 in Los Angeles, California. (Photo by GONZALO/Bauer-Griffin/GC Images)
LOS ANGELES, CA - NOVEMBER 23: Fergie and Josh Duhamel attend the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Mazur/AMA2014/WireImage)
LOS ANGELES, CA - FEBRUARY 20: Singer Fergie and husband actor Josh Duhamel arrive at the Tom Ford Autumn/Winter 2015 Womenswear Collection Presentation at Milk Studios on February 20, 2015 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - OCTOBER 30: Josh Duhamel and Stacy Ann Ferguson attend the Casamigos Tequila Halloween Party Brought to you by Those Who Drink It at a private residence on October 30, 2015 in Los Angeles, California. (Photo by Amy Graves/Getty Images)
LOS ANGELES, CA - JANUARY 31: Fergie and Josh Duhamel arrive at the 52nd Annual GRAMMY Awards held at the Nokia Theater on January 31, 2010 in Los Angeles, California. (Photo by Gregg DeGuire/FilmMagic)
BEVERLY HILLS, CA - NOVEMBER 07: Josh Duhamel and Fergie attend WildAid 2015 at Montage Hotel on November 7, 2015 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - AUGUST 07: (L-R) Fergie, Axl Jack Duhamel and Josh Duhamel attend a baseball game between the between the Boston Red Sox and the Los Angeles Dodgers at Dodger Stadium on August 7, 2016 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
LOS ANGELES, CA - MARCH 31: Josh Duhamel and Fergie are seen on March 31, 2016 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - AUGUST 07: (L-R) Axl Jack Duhamel, Fergie and Josh Duhamel attend a baseball game between the between the Boston Red Sox and the Los Angeles Dodgers at Dodger Stadium on August 7, 2016 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
WEST HOLLYWOOD, CA - AUGUST 07: Fergie Duhamel and Josh Duhamel attend the Premiere of Orion Pictures' 'Spaceman' at The London Hotel on August 7, 2016 in West Hollywood, California. (Photo by JB Lacroix/WireImage)
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Robinson also had nothing but praise for his on-screen parents.

"I'm hoping that [the audience] takes away a feeling of being included and feeling that they have been represented in a way that is for them, and I feel like that they should walk away feeling like they wish they had Josh Duhamel and Jennifer Garner as parents," he said.

Garner and Duhamel also praised the lighthearted nature of the film, which is tricky to pull off given its important subject matter.

"It's just a beautiful, fun, sweet, funny movie," Garner said. "And it happens to have at the center of it a really gorgeous version of a young man coming out, and it can either be about that for you -- and really speak directly to you -- or it can be a movie that you go and just have popcorn and have a great time, because it does have all of those kind of frothy, fun whimsical qualities, just with something really beautiful at the core."

An important part of the film is definitely its good sense of humor.

"When I read it, it was something I felt was different from what I had seen before, there was nothing heavy-handed about it," Duhamel added. "It was funny, it dealt with something I think is important -- acceptance, tolerance, all those things -- and I got a chance to work with Jen, Nick, [director] Greg Berlanti, who I love, and you know, it's just one of those things you do because you know you're going to have a good time."

Love, Simon hits theaters on March 16.

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