When it comes to It Ends With Us , Colleen Hoover is where it all began. Which is why it’s only fitting that the author of the novel feature in the film adaptation , which stars Blake Lively , Brandon Sklenar and Justin Baldoni , the latter of whom also directed the project. “I do make a cameo in the movie,” Colleen revealed in an exclusive interview with E! News.

“And it was a tough day. All I did was stand there and pretend to be talking in a party scene, but just know that took like 12 hours to film. It was insane.

” But don’t expect the best-selling author to be switching careers any time soon. “I love knowing a little bit behind the scenes,” she noted. “But 12 hours of just reshooting that scene, I don't know how actors do it.

After doing one day of pretending to act—it’s one of the hardest jobs in the world.” It’s why as she thinks about her future book-to-film adaptations—her novel Verity is already in pre-production —she has one stipulation for her possible cameos. As she joked, “I think I'll continue to choose non-speaking roles.

” Someone she was more than happy to take center stage, however, was Blake. While the film version aged-up protagonist Lily Bloom, Colleen said the choice allowed the perfect candidate to play the part. “Blake has always been one of my favorite actresses,” she explained.

“When they called me and told me, I didn't want to get my hopes up because I was so excited about the possibility of her playing this r.