What you think about splitting book to movie adaptations?

[Scoobes]

Generally, it's just movie studios being greedy. I find it very irritating.

I think it's forgiveable if the book is as long and complex as Game of Thrones/Song of Ice and Fire (as that needs 10 hours per book), but I can't think of a multi-movie adaptation of a single book that didn't feel like a cash grab.