First, I am not a screenwriter. AT ALL. But my son (an NYU Tisch grad) is, and as an exercise, he's taking a stab at adapting my book (1st person/humorous/action/suspense) into a screenplay.
He says the biggest challenge is that much of the mc's humor is internal, and so, without a voiceover, is challenging to show. He's working on a few ideas, but this issue never occurred to me, so I've been wondering about it.
Are there any movie adaptations from mg novels (or other kids books) that accomplish this without inserting voiceovers (which I find a little annoying). And are there any screenwriting techniques besides voiceover to handle this? I'm sort of doubting it. Plus, I'm also wondering if it's naturally easier to adapt a book in 3rd person because of this issue? In other words, is this challenge preventable?
I'm bringing this up, not really to get answers, but I think it's interesting, and I'd love to hear the view of people who understand screenwriting, especially in relation to adapting children's books. I think those of us who only write novels would find the process of adapting books into a movie format fascinating. If I never considered it, there must be one or two other people who haven't, either.