Yeah, Shawshank Redemption is one of those movies that if I see it on TV, I end up watching it until the end, wherever I came in at. Love that damn film. I read the story it was based on years before the movie, and it kept true to it pretty damn well.
Walk Hard is a piece of shit though, unless you like Will Ferrel-style movies that don't have Will Ferrel in them. Half of the ones WITH him in them still suck.