Hi, I'm looking for time travel stories (preferably movies) without paradoxes (grandfather paradox and similar). Also, I'm not looking for stories that try to explain changes in the past with the creation of alternate timelines. I'm talking about stories where people travel into the past and do things which in the end don't change the present from which they departed. Coming to my mind: - Terminator series - 12 Monkeys - Harry Potter and the Prisoner of Azkaban And maybe Primer, but I'm too confused to tell. Any more?