Can YOU Name a Movie that is a total LET DOWN compared to the book?

I'll name a few of my Grrrr's

American Psycho
Less Than Zero
The Rules Of Atttraction ...yep poor old Easton Ellis gets the Hollywood shoddy treatment
Apt Pupil

Well what's your movie Grrr and why do you think they get it so wrong?

Thanks for taking part! :))
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