Actually this topic is one of argumentative writing topics.
I am a gamer and movie goer. I've played many games that people may consider violence.
And I've watch many movies which is very sadistic.
I think they have effect on your behaviors but not enough to make you a murderer.
There is a psychological effect called desensitization.
When a person expose to a certain kind of stimulation over and over again, he will get stimulated less often.
If you see people kill each other in a movie a thousand times, you will feel nothing.
Despite the desensitization effect, you are still the one to make choices.
So it's not good to blame it all on movies and video games.
Peerapong 054 3EN