Although many people criticize violent movies, if there is a movie which does not contain sex and violence, who will go to see that movie? Most major movies, such as "Lethal Weapon", "Die Hard", and "Independence Day", were really popular in spite of the fact that the "good guy" killed more people than the "bad guy" did.
In my opinion, Hollywood tends to produce few kinds of movies--action, panic, love story, and comedy. Whenever I watch a movie or a video, there is at least one murder in each movie.
The biggest number of deaths are in the panic movies, in my opinion. Action movies with violence take heat from adults who blame them for real life violence because they are closer to reality than other movies. For example, in "Natural Born Killers" we can see around 50 deaths, whereas in "Independence Day" thousands of people die.
In both movies, tons of people are killed, though the ways to kill are different. The big difference between them is about reality.
Children might imitate behavior they see in the movies. I agree that movies, TV, and other media influence our lives, especially for kids; but not all children imitate violence. Most kids hate that and don't want to see it.
The question whether movie violence should be regulated or not is a difficult and complicated matter. Although this is just my experience, I have learned that it's best to keep away from violent movies and how it hurts if I get a punch.
Violence in movies might make some kids aggressive, but they can learn about the world from that. If there is no violence in the media, everyone would have to learn only from real experience. A really tough kid never understands how it hurts to get punched.
Many parents tend to blame media violence, but parents should teach their children that there are tons of good things and bad things, and they should help them to know what is wrong. I think government regulation is the last solution. Before that, parents can help their offspring to behave in a beautiful way.
http://www.topics-mag.com/edition12/media-movies.htm