Blake Lively reveals husband Ryan Reynolds wrote It Ends With Us rooftop scene: 'He works on everything I do'

The It Ends With Us cast is bringing the romantic chemistry behind the camera, too.

On the red carpet for the It Ends With Us premiere, star Blake Lively told E! News that husband Ryan Reynolds wrote the fan-favorite rooftop scene.

"The iconic rooftop scene, my husband actually wrote it," Lively said. "Nobody knows that, but you now."

The scene depicts Lively's character Lily first meeting the man that will eventually become her great love — and great fear — Justin Baldoni's Ryle. Baldoni also directed the film.

"He works on everything I do," Lively told E! News. "I work on everything he does. So his wins, his celebrations are mine and mine are his." 

Lively recently appeared as Lady Deadpool in Reynolds' smash hit Deadpool & Wolverine, and their children Inez and Olin costarred as Kidpool and Babypool. The power couple also lent their voices to this year's John Krasinski–directed animated film IF.

Lively and Reynolds' idyllic off-screen romance is nothing like the one she'll be depicting with Baldoni in It Ends With Us. The film, adapted from wildly popular romance author Colleen Hoover's 2016 novel, is less of a love story than a story of one woman's effort to break a cycle of intergenerational violence and trauma.

This marks the first Hoover novel to be adapted to the big screen, but it certainly won't be the last. Her 2018 mystery Verity is in development at Amazon MGM Studios, and Confess was adapted into a Prime Video series in 2017 starring Katie Leclerc and Ryan Cooper.

It Ends With Us has already courted a bit of controversy, due to Baldoni and Lively's ages. Both actors will be playing characters 10+ years older than their novel counterparts, but in an interview with Entertainment Weekly, Baldoni expressed indifference: "It didn't really bother me because the fact that they were talking about it was a beautiful thing." He added, "If nobody talks about your book adaptation, then I feel like that's more of a problem. Then we should be worried."

It was Hoover herself who convinced Baldoni to take the part of Ryle after he'd boarded the project as director. The two struck up an email penpal relationship after Baldoni was moved to tears reading the book. In reply to an email in which Baldoni promised to "protect" the story during the development process, Hoover suggested, "Have you ever thought about acting in the movie? Maybe Ryle, perhaps? I think you could do it."

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As far as Reynolds is concerned, the Free Guy star is certainly known for his wit and comic timing. But romantic dialogue? You'll have to be the judge when It Ends With Us hits theaters on August 9.