I think as an author you have to allow a movie to be separate from the book. It's an entirely different animal. I almost never mind when a movie changes or cuts something - as long as it helps the film work better.
Rainbow RowellCath ate the banana and held on to his gaze. “I’d give you the moon right now,” she said. Levi’s eyes flashed happily, and he hitched up an eyebrow. “Yeah, but would you slay it for me?
Rainbow Rowell