What was the worst bastardization of a classic book into a movie?

I LOVED that book! It was one of the books that helped me learn English as a kid. The movie was an utter mockery of it and I don't even know what the fuck they were thinking with the sequel.

The movie was great, so I suppose that only says good things about the books!

Huh, I didn't even know it was a book in the first place. The movies weren't half bad at all, as their own thing...

I didn't know it is a book. I liked the movie though.

I should probably add it to my list then!