What does the title "The Shawshank Redemption" refer to?
- It doesn't make sense to say Andy was redeemed, since he was never guilty of the crime for which he was convicted.
- Red is redeemed in the sense that he gets his parole. But we never really view him as a bad guy in the first place, and it's unusual to name a film after the plot arc of someone other than the main character.
- A literal interpretation would be that the prison itself is being redeemed by Andy's actions. But Andy only improves life there a little bit, and it presumably gets worse after he leaves.
- The word "redemption" can also be synonymous with "purchase", but I can't make sense of that interpretation either.
Is there any interpretation that makes more sense? Or word from Stephen King as to what he was thinking when he chose the title? (The original book was called "Rita Hayworth and Shawshank Redemption".)