Justin Baldoni is getting candid about the delicate balance acting in and directing a film.

It Ends With Us marked his first time pulling double duty on a project, and he admitted it was an “extreme challenge” at times—especially when working with so many different points of view on set.

“Every movie is a miracle,” Justin told Today.com in an interview published Aug. 9. “And then, of course, you’re navigating complex personalities and trying to get everybody on the same page with the same vision. And mistakes are always made, and then you figure out how to move past them.”

But his approach to helming the adaptation of the 2016 Colleen Hoover novel—which costars Blake Lively, Brandon Sklenar, Jenny Slate and Isabela Ferrer—from a very collaborative place.

“I’m a ‘best idea wins’ person,” he explained, “and I always have been, to a fault.”

In fact, Justin noted that at times it felt like people on set were wondering “if I know what I’m doing or if I have a point of view, because I’m so willing to have my vision changed.”