Atonement (R, Drama) B

Set in 1935 a 13 year old girl falsely accuses her sister’s boyfriend (Robbie) of molesting a young girl. The movie takes a long time to establish this premise and then concentrates mostly on Robbie’s life after he was sent to jail. I thought the movie would be more about the young sister’s atonement process. The movie also keeps switching back in time (without notice) in order to show the story from different character’s point view.