A great copycat

Rating: 9/10 (10 July 2014)

This is a good movie no doubt, but it's not a copycat? Really it's first of its kind? I can name quite a few predecessors if you guys are interested to know.
1. Groundhog Day (1993), trapped in a time loop to wake up everyday the same day. Ring a bell?
2. Prince of Persia: The Sands of Time (2010), the dagger can turn back time and the grand reset at the end to the starting point. Can you see the resemblance?
3. Source Code (2011), could it be a same writer for the both movies? I am not sure, but it is the same story, eh?
The Aliens looked almost identical as Sentinals in the Matrix.
Please don't get me wrong, this is a great movie, highly recommended, go see it!