This is one of my favorite movies, yet it won 0 Oscars (nominated for 7) and was a box office flop (cost $25M to make and box office proceeds were $28M). It only gained popularity after the theatres from the VHS rental market.

I firmly believe part of the initial commercial failure was because of the title. With something more descriptive like, "Escape from Shawshank" or just "Prison Break" people would have been more interested to see it.