I agree with you on "Harry Potter and the prisoner of Azkaban". Very nice movie - watched it with the family, read the series. Unmatchable experience. The time-turner plot was captivating. Time travel rules stood consistent throughout the movie. Loved it.
Looper and Edge of Tomorrow both earn their spot here 100%
If I were to pick two to watch again it would be Primer and 12 Monkeys.