The movie had a good story to it. I personally thought is was a bit slow. I don't know quite how to put it but there was not enough going on in the film to keep my attention.
It may be just the way it was filmed, but there were parts that dragged with not much meaning.
I understand the story about someone getting out of prison after 20 years, I get that. I have had friends that went through that hell.
The portrayal or something could have been played up to keep the movie a bit more up beat.