Turns out making movies is  ItEndsWithUs a family affair for Blake Lively and Ryan Reynolds.

The Gossip Girl alum revealed that the Deadpool & Wolverine star provided his creative expertise when it came to her new movie It Ends With Us.  

"The iconic rooftop scene, my husband actually wrote it," Blake exclusively told E! News at the It Ends With Us premiere in New York City Aug. 6. "Nobody knows that, but you now."

And the chance to work together is something she and Ryan cherish, with Blake adding, "We help each other."

"He works on everything I do," she shared. "I work on everything he does. So his wins, his celebrations are mine and mine are his." 

Blake and Ryan—who share daughters James, 9, Inez, 7, and Betty, 4, and son Olin, born in 2023—have both been busy on the publicity trail over the past few months promoting their respective films. And as the Sisterhood of the Traveling Pants star explained, they absolutely loved it.

"It's just so thrilling," she shared. "It's so surreal in our house right now." (For more with Blake and the cast of It Ends With Us, tune into E! News tonight, August 6 at 11 p.m.)

And that's not the only way Ryan, 44, and Blake, 36, have supported each other as of late. In fact, Blake appeared as Lady Deadpool in Ryan's Deadpool & Wolverine flick, while Ryan recently jumped in alongside his mother Tammy Reynolds and BFF Hugh Jackman for an interview with his wife's It Ends With Us costar Brandon Sklenar.

"It's not everyday the husband gets to interview his wife's love interest in a film," Ryan joked to Brandon during the interview posted Aug. 6. "It's kinda crazy."

But while the couple have made their movies a family affair—Inez and Olin appeared as Kidpool and Babypool in Deadpool & Wolverine—they're a bit more careful about which of their films their kids watch.

"Honestly, Savages, not a movie for my children to see," Blake recently joked to E! News. "The Town—not on the top list, I'd have to say. You know it's a rough one, my filmography." 

Luckily, Ryan has starred in a few more kid-appropriate films, like If and Detective Pikachu.

"My husband's filmography is much more user-friendly," she quipped. "Yeah, mommy's movies are not."

For more from Blake and Ryan over the years, keep reading.

—Reporting by Ashley Bellman 

Blake and Ryan's superhero flick, The Green Lantern, was released in theaters.

As their romance heated up, speculation that the two had already swapped vows started to spread. However, it turned out to be untrue.

Blake and Ryan tied the knot during a private ceremony in South Carolina on Sept. 9, 2012.

Blake and Ryan looked absolutely stunning—and even showed some rare PDA—at the fashion event.

The pair looked like an old Hollywood couple at the Cannes Film Festival.

Blake announced her pregnancy on her lifestyle website Preserve, with the company sharing in a blog post: "Preserve at its core is about family. 'Family' is the single word our founder, Blake built this home on."

She gave birth to her and Ryan's first child, a daughter named James, in December 2014.

Blake proudly supported her hubby at a special fan screening of Deadpool in New York City.

These two own the red carpet, as they did at the 2016 amfAR gala.

Blake showed off her growing baby bump during a Cat & Jack event for Target. 

She and Ryan welcomed their second child, a daughter named Inez, in September 2016.

When it was time for Ryan to receive his star on the Hollywood Walk of Fame, Blake made sure their two kids were in attendance. 

The two sure make a handsome couple!

Blake and Ryan coordinated in blue accents at the opening of Rei Kawakubo/Comme des Garcons: Art of the In-Between exhibition. 

Blake confirmed she was expecting her third child with Ryan when she showed off her baby bump at the premiere of Detective Pikachu.

The couple welcomed daughter Betty in October 2019.

Blake and Ryan served as co-chairs at the 2022 Met Gala, which was themed America: An Anthology of Fashion.

The actress was on hand to cheer on Ryan's soccer team Wrexham AFC in Wales.

Blake shared that she was expecting again during an appearance at the Forbes Power Women's Summit: "I just like to create. Whether that's baking or storytelling or businesses or humans, I just really like creating."

She welcomed her and Ryan's fourth child in early 2023.

In February 2023, Blake revealed she welcomed the couple's fourth child. "We wouldn't do this four times if we didn't love it," Ryan later shared during a CNBC interview. "Everybody's doing great. Everybody's actually doing fantastic."

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Grab your copy of It Ends With Us now, and immerse yourself in the story before the highly anticipated movie hits theaters.