Looper
Good movie, looks like it might just become a decent new franchise, but the ending was terrible. I do understand how the subject matter will always be tricky when it comes to consistency and plot-holes, but these were pretty darn major.
Note that I normally try to look at what seems like a plot-hole and try to explain it by leaving certain "facts" implied, but there were a few decisions made by the writers/director that were just plain wrong.
The sudden ending was crying shame, but I'd 100% recommend it to anyone who likes a good movie.