I've seen way too many movies in my time. Let's see if I can come up with a list of repetative themes:

1. Kung fu movies starring Western hero who kicks and kills main evil boss who happens to be Asian.

2. USA saves the world.

3. USA President is a war hero and looks after the interests of the people/USA President is hero amongst hero

4. Alien/Monster/Creature/Unstoppable Dude/Natural Disaster kills off 99% of the cast, is killed/stopped by the last person standing

5. Some m*ther f*cken dude gets p*ssed off with crime bosses and seeks revenge.

6. Sports teams come back from dreaded 0 and .... starts, real off an incredible streak and win the finals.

7. Cop who breaks the rules, says the f word heaps, and uses his m*ther f*cken gun and muscles rather than brains to solve the problem.

8. Brave knight/medievil dude leads his people to freedom, or fights for freedom only to be betrayed and dies in the end.

9. Boy and girl hate each other and fall in love.

10. Man creates new technology/driod/cyborg/monster/creature and is killed by it.