The Shawshank Redemption (1994) on Netflix

Bank Merchant Andy Defrene is convicted of the murder of his wife and her lover, and sentenced to life imprisonment at Shawshank prison. Life seems to have taken a turn for the worse, but fortunately Andy befriends some of the other inmates, in particular a character known only as Red. Over time Andy finds ways to live out life with relative ease as one can in a prison, leaving a message for all that while the body may be locked away in a cell, the spirit can never be truly imprisoned.