The movie reminds me of a simple computer game from the 80s. Open doors and make sure that the guards don't catch you. That's all. The film has nothing more to offer, except for Daniel Radcliffe, who takes great pains to give the film something special by portraying physical fear. I was annoyed to have spent money on it. Just the fact that people's hairstyles don't even change during a long prison stay is ridiculous. From the beginning to the end, the actors look the same. There is no atmosphere created in the film at all that being locked up is something terrible. This is a below average film that only convinces with beautiful visuals and good editing. Waste of time.