Marisa Tomei and Julianne Moore discover they're cousins -- and they are beyond excited

Marisa Tomei and Julianne Moore have more in common than they thought!

On Tuesday night's episode of PBS' Finding Your Roots, Tomei discovered that she has a famous cousin, Julianne Moore! Henry Louis Gates Jr., the show's host, told Tomei the exciting news and she was thrilled to learn of her familial relation to her longtime friend.

"Julianne? Julianne! Julie? You know we went to school together?" 54-year-old Tomei asked, referencing her and Moore's time at Boston University. "Jules! Oh, I can't wait to tell her."

The show went on to explain that the women, who co-starred in Crazy, Stupid, Love in 2011, share "an identical stretch of DNA along their X chromosome."

"Ironically, Julianne has no Italian ancestors that we know of. And every ancestor we could name on Marisa's tree has roots in Italy," the Finding Your Roots voice over noted. "A powerful demonstration of how DNA can bridge the divide that appears to exist between people of diverse origins."

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Marisa Tomei through the years
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Marisa Tomei through the years
DAYTONA BEACH - MARCH 22: AS THE WORLD TURNS featuring cast member Marisa Tomei (as Marcy Thompson) at Daytona Beach location. Neg Dated March 22, 1984. (Photo by CBS via Getty Images)
Dave Schlachet and Marisa Tomei at Michael Grosner's Party at Studio 54. April 1985. (Photo by Patrick McMullan/Getty Images)
NEW YORK - JULY 26: AS THE WORLD TURNS cast member Marisa Tomei as Marcy Thompson at costume party. Image dated July 26, 1985. (Photo by CBS via Getty Images)
Marisa Tomei during After Party For The 14th Annual People's Choice Awards at Chasen's Restaurant in Beverly Hills, California, United States. (Photo by Ron Galella/WireImage)
UNITED STATES - MARCH 16: Marisa Tomei (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 16: Marisa Tomei (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 16: Marisa Tomei (Photo by The LIFE Picture Collection/Getty Images)
Marisa Tomei during 1993 MTV Movie Awards in Los Angeles, California, United States. (Photo by Jeff Kravitz/FilmMagic, Inc)
UNITED STATES - JULY 29: Marisa Tomei on the set of 'The Paper' in Greenwich Village. (Photo by Richard Corkery/NY Daily News Archive via Getty Images)
UNITED STATES - OCTOBER 12: Marisa Tomei at the Dada Ball., (Photo by Richard Corkery/NY Daily News Archive via Getty Images)
Marisa Tomei during Launch Party for Yves Saint Laurent Fragrance 'Champagne' - September 12, 1994 at Statue of Liberty in New York City, New York, United States. (Photo by Ron Galella/WireImage)
Marisa Tomei (Photo by Ron Galella, Ltd./WireImage)
237951 07: Actress Marisa Tomei stands at the 'Kids for Kids' benefit carnival October 1, 1995 in New York City. The carnival, which was funded by Harper's Bazaar magazine, was the third held by the Pediatric AIDS Foundation to raise funds for research. (Photo by Evan Agostini/Liaison)
THE ACTRESS MARISA TOMEI AT THE 48TH CANNES FESTIVAL (Photo by Stephane Cardinale/Sygma via Getty Images)
Actress Marisa Tomei at Tony Awards. (Photo by Dave Allocca/DMI/The LIFE Picture Collection/Getty Images)
Marisa Tomei (Photo by Ron Galella/WireImage)
Marisa Tomei at the premiere of 'What Women Want' at the Village Theater in Los Angeles, Ca. 12/13/00.(Photo by Kevin Winter/Getty Images).
Actress Marisa Tomei at the 28th Annual People's Choice Awards held at the Pasadena Civic Auditorium in Los Angeles, Ca., Jan. 13, 2001. (photo by Kevin Winter/Getty Images)
Marisa Tomei during Van Cleef & Arpels Party at Van Cleef & Arpels Rodeo Store in Beverly Hills, California, United States. (Photo by Donato Sardella/WireImage)
Marisa Tomei during Great Joy! A Holiday Celebration from Broadway A Benefit for The Actors Fund of America at The New Amsterdam Theater in New York City, New York, United States. (Photo by Bruce Glikas/FilmMagic)
Marisa Tomei during Glamour Magazine's 16th Annual Glamour Women of the Year at Lincoln Center Avery Fisher Hall in New York, New York, United States. (Photo by M. Von Holden/FilmMagic)
LONDON - FEBRUARY 08: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Actress Marisa Tomei poses in the press room during the The Orange British Academy Film Awards 2009, at the Royal Opera House on February 8, 2009 in London, England. (Photo by Dave M. Benett/Getty Images)
LOS ANGELES, CA - NOVEMBER 14: Marisa Tomei attends MOCA NEW 30th Anniversary Gala at MOCA on November 14, 2009 in Los Angeles, California. (Photo by MARK WOODWORTH/Patrick McMullan via Getty Images)
NEW YORK, NY - OCTOBER 05: Marisa Tomei attends the premiere of 'The Ides of March' at the Ziegfeld Theater on October 5, 2011 in New York City. (Photo by Gilbert Carrasquillo/FilmMagic)
HOLLYWOOD, CA - DECEMBER 05: Marisa Tomei attends the Assouline And Coca-Cola Celebrate The Launch Of The Assouline Memoire Set - Coca-Cola: Film, Music & Sports At Siren Studios In Los Angeles at Siren Studios on December 5, 2013 in Hollywood, California. (Photo by Jonathan Leibson/Getty Images for Assouline)
HOLLYWOOD, CA - NOVEMBER 14: Actress Marisa Tomei attends the 7th annual Governors Awards at The Ray Dolby Ballroom at Hollywood & Highland Center on November 14, 2015 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
DENVER, CO - NOVEMBER 11: Marisa Tomei walks the red carpet at the Global Down Syndrome Foundation's 9th annual Be Beautiful Be Yourself Fashion Show at Sheraton Denver Downtown Hotel on November 11, 2017 in Denver, Colorado. (Photo by Tom Cooper/Getty Images for Be Beautiful Be Yourself Fashion Show)
WESTWOOD, CA - OCTOBER 14: Marisa Tomei arrives at the Bottega Veneta Hosts Hammer Museum Gala In The Garden at Hammer Museum on October 14, 2017 in Westwood, California. (Photo by Steve Granitz/WireImage,,)
Actresses Marisa Tomei, center, exits state supreme court after attending the hearing of Weinstein Co. Co-Chairman Harvey Weinstein in New York, U.S., on Thursday, Dec. 20, 2018. The firestorm of accusations against Hollywood producer Harvey Weinstein in late 2017 spread from entertainment and media across other areas of business and government in the U.S. and abroad. Photographer: Louis Lanzano/Bloomberg via Getty Images
CAGLIARI, ITALY - JUNE 16: Marisa Tomei attends the 'Filming Italy Sardegna Festival' at Forte Village Resort on June 16, 2018 in Santa Margherita di Pula, Cagliari, Italy. (Photo by Daniele Venturelli/Daniele Venturelli/Getty Images)
LOS ANGELES, CA - JANUARY 19: Marisa Tomei is seen on January 19, 2019 in Los Angeles, CA. (Photo by Hollywood To You/Star Max/GC Images)
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Tomei, 54, was thrilled with the news, sharing the video and pics of her with Moore, 58, on Instagram.

"What an incredible gift to find out about my family’s roots with @HenryLouisGates!" Tomei wrote. "Eternally grateful for this generation and generations to come.... and the big surprise — discovering my friend is my REAL cousin! Hey cuz @juliannemoore!!!! Love"

Moore was just as excited about her new kin, sharing a snippet from the show on Instagram and exclaiming, "I KNEW WE WERE ALIKE! @marisatomei is my COUSIN!! OMG I’m so excited, thank you @henrylouisgates for letting us know we have identical segments of DNA - #FindingYourRoots #twinning"

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