The Shawshank Redemption
For the record, this is my favorite movie and short story by Stephen King. It’s perfect in both adaptations, which is rare for any screenplay to accomplish. That said, nothing is perfect so lets now look for the mistake.
Blooper: When Andy Dufresne was planning his escape, he covered the escape hole he was digging with a Rita Hayworth poster from “One Million Years B.C.” The movie came out one year after Shawshank was set. Doh!