BookTok Can't Calm Down Over Blake Lively's Next Movie Role - E! NEWS

As for the behind-the-scenes team, both actors and the author will have creative say as executive producers on It Ends With Us.

Other producers include Alex Saks( The Florida Project) and Christy Hall( I Am Not Okay With This), who is writing the script, per a press release from Wayfarer Studios and Sony Pictures.

Blake and Justin are expected to play redheaded florist Lily Bloom and doctor Ryle Kincaid, respectively, with Colleen announcing earlier in the day that she was preparing to reveal those characters' castings.

"Lily hasn't always had it easy, but that's never stopped her from working hard for the life she wants," reads the book synopsis.

"She's come a long way from the small town where she grew up—she graduated from college, moved to Boston, and started her own business.

And when she feels a spark with a gorgeous neurosurgeon named Ryle Kincaid, everything in Lily's life seems too good to be true."