In addition, the story doesn't end when Andy is freed. The major story problem has been resolved, but there is still this lingering question surrounding Red. Will he end up like Brooks or will he finally muster up the kind of hope that Andy taught him during their years together? "Get busy living or get busy dying." The emotional meaning of the story is tied up in Red's decision on that.
funny. this is EXACTLY why i see andy as the main character and redd as the protagonist. the film ends when redd finds andy and his hope is finally resolved.