Ones that come to mind: Ready Player One (the book is complete trash, but I found the movie quite fun), The Bourne trilogy (book 1 is ok, but still worse than the film; books 2-3 are a complete mess), The Shawshank Redemption (the film has a much tighter focus), and The Green Mile (unlike the rest of these, this one was still good; it just suffered from the fact it was initially published as a serial).
Ones that come to mind: Ready Player One (the book is complete trash, but I found the movie quite fun), The Bourne trilogy (book 1 is ok, but still worse than the film; books 2-3 are a complete mess), The Shawshank Redemption (the film has a much tighter focus), and The Green Mile (unlike the rest of these, this one was still good; it just suffered from the fact it was initially published as a serial).