1) how? I consider The Shawshank redemption romantic movie for women, if you want more realistic portrayal of prison and impact it does on people I recommend German Das Experiment. I served in military which was sort of like prison where you were totally under someone's control and I experienced changes shown in Das Experiment first hand, when your are noob and older dudes bully you and later you turn into them

I meant that it can change your world view on the nature of forgiveness, not of prison psychology. Surely I was influenced seeing it at 14 years old. Das Experiment is for a much finer palate!