Q&A: what is the name of this movie?

Question by Marcus L: what is the name of this movie?
the movie is a guy, business man i think, who is trying to be killed by people. he kills one by squishing his head with a car door. the killers then get into his house and kill his wife and almost kill his son. he then goes to a gun dealer and buys a pistol and a double barrel shotgun and pays $ 10,000 for both of them. the gun dealer says that makes you a preferred customer and give him manuals on how to use them. he then kills all the people trying to kill and kills the last one when both are sitting down on a bench.

Best answer:

Answer by Arab
Harry Potter

Give your answer to this question below!