Stone is an economical character-driven drama where the actors' performances outweigh the whole film.
Edward Norton is Gerald "Stone" Cleeson, a convict trying to get a parole. He's just a recommendation away from what he desires and that go signal must come from officer Jack Maby (Robert DeNiro), the prison's evaluator. Things get complicated when two things happen: Stone's wife Lucetta (Milla Jovovich) gets a little too involved with Jack and Stone's religious epiphany.
Like I've mentioned, the actors carry this film. Points to Milla Jovovich, who is refreshingly taking a dramatic turn and not doing action scenes. But despite this, the movie never reaches it peak-- like an explosion you're waiting to happen but doesn't happen.
Stone is watchable because of the three leads. Take them away, this movie is a pebble.