Ben Stiller brings daughter Ella Olivia, 15, as New York Film Festival date

Ben Stiller had an unexpected but lovely date this weekend: 15-year-old Ella Olivia, his daughter with ex-wife Christine Taylor.

Ella was by her dad's side Sunday at the New York Film Festival premiere of his new film "The Meyerowitz Stories," looking totally at ease on the red carpet. She paired an emerald green dress with a gold clutch and nude heels.

Ella and her brother, 12-year-old Quinlin Dempsey, rarely make public appearances with their famous parents. Stiller and Taylor announced their split in May after 18 years together.

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Ben Stiller and daughter Ella Stiller through the years
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Ben Stiller and daughter Ella Stiller through the years
NEW YORK, NY - OCTOBER 01: Ben Stiller and Ella Olivia Stiller attend the New York Film Festival premiere of The Meyerowitz Stories (New and Selected) at Alice Tully Hall on October 1, 2017 in New York City. (Photo by Jason Kempin/Getty Images for Netflix)
NEW YORK, NY - OCTOBER 01: Ben Stiller and Ella Olivia Stiller attend the New York Film Festival premiere of The Meyerowitz Stories (New and Selected) at Alice Tully Hall on October 1, 2017 in New York City. (Photo by Jason Kempin/Getty Images for Netflix)
NEW YORK, NY - OCTOBER 01: Ben Stiller and Ella Olivia Stiller attend The 55th New York Film Festival - 'Meyerowitz' at Alice Tully Hall on October 1, 2017 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
NEW YORK, NY - APRIL 17: Christine Taylor, Ella Olivia Stiller, and Ben Stiller attend the 'Groundhog Day' Broadway Opening Night at August Wilson Theatre on April 17, 2017 in New York City. (Photo by Jimi Celeste/Patrick McMullan via Getty Images)
NEW YORK, NY - APRIL 17: (L-R) Christine Taylor, Ella Olivia Stiller, and Ben Stiller attend the 'Groundhog Day' Broadway Opening Night at August Wilson Theatre on April 17, 2017 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
NEW YORK, NY - FEBRUARY 01: (L-R) Ella Olivia Stiller, Christine Taylor, Lucas Steele and Ben Stiller pose backstage at the hit musical 'Natasha, Pierre & The Great Comet of 1812' on Broadway at The Imperial Theatre on February 1, 2017 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - MAY 12: (L-R) Ben Stiller, Christine Taylor and daughter Ella Olivia Stiller pose backstage at the hit musical based on the cult film 'American Psycho' on Broadway at The Schoenfeld Theatre on May 12, 2016 in New York, New York. (Photo by Bruce Glikas/Bruce Glikas/FilmMagic)
NEW YORK, NY - AUGUST 31: Ben Stiller, Ella Olivia Stiller and Christine Joan Taylor-Stiller are sighted on Arthur Ashe Stadium day 1 of the 2015 US Open at USTA Billie Jean King National Tennis Center on August 31, 2015 in New York City. (Photo by Uri Schanker/GC Images)
NEW YORK, NY - DECEMBER 11: Actor Ben Stiller, daughter Ella Olivia Stiller and actress Christine Taylor attend the Night At The Museum: Secret Of The Tomb' New York premiere at the Ziegfeld Theater on December 11, 2014 in New York City. (Photo by Jim Spellman/WireImage)
NEW YORK, NY - MAY 17: (EXCLUSIVE COVERAGE) (L-R) Ella Olivia Stiller, Margot Seibert as 'Adrian', Christine Taylor, Ben Stiller, Quinlin Dempsey Stiller and Andy Karl as 'Rocky Balboa' pose backstage at the hit musical 'Rocky' on Broadway at The Winter Garden Theater on May 17, 2014 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - DECEMBER 18: Actor Ben Stiller, daughter Ella Olivia Stiller and actress Christine Taylor-Stiller attend 20th Century Fox with The Cinema Society & Brooks Brothers host a screening of 'The Secret Life of Walter Mitty' at The Museum of Modern Art on December 18, 2013 in New York City. (Photo by Ben Gabbe/FilmMagic)
NEW YORK, NY - JUNE 17: Ben Stiller and his daughter, Ella Olivia Stiller filming on location for 'The Secret Life Of Walter Mitty' on June 17, 2012 in New York City. (Photo by Bobby Bank/WireImage)
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Although she mostly stays out of the public eye, Ella actually has two major film credits to her name: She had small roles in her dad's "Night at the Museum: Secret of the Tomb" (2014) and "Megamind" (2010).

Stiller himself chooses not to spend too much time in the spotlight, either. He recently made headlines when he opened up about being cancer-free after a 2014 prostate cancer diagnosis.

The two may not look too much alike, but we've seen plenty of celebrity parent-daughter lookalikes on the red carpet this year. Check them out in the slideshow below:

8 PHOTOS
Celebrities and their look-alike daughters
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Celebrities and their look-alike daughters

Kaia Gerber and Cindy Crawford

(Photo by Laura Cavanaugh/FilmMagic)

Reese Witherspoon and Ava Phillippe

(Photo by Jason LaVeris/FilmMagic)

Katie Holmes and Suri Cruise

(Photo by Alo Ceballos/GC Images)

Goldie Hawn and Kate Hudson

(Photo by Steve Granitz/WireImage)

Kim Zolciak-Biermann and Brielle Biermann

(Photo by David Livingston/Getty Images)

Gwyneth Paltrow and Apple Martin

(Photo by Harry How/Getty Images)

Christie Brinkley and Sailor Lee Brinkley-Cook

(Photo by Gilbert Carrasquillo/FilmMagic)

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