I would say no. Removing the things of concern like this cannot make society better since we then lose the opportunity to teach others how to make choices. If the movies or video games break laws-of course remove them. If, however, they are in poor taste, show gratuity violence and etc. then people should be taught why these things are flawed or objectionable. If they are taught, then they can transfer that knowledge to other learning situations.
It is hard to know whether it would because we really do not do either of these things. We do censor films to some extent (although that is almost all because of sex or language) and we have ratings on computer games. So it is not really possible to say if it does make society better because we do not actually do these things.
In general, I do not think that censorship is the answer to societies problems. I think that violence in films and video games is acceptable to some extent because it gives us an outlet for our violent tendencies. I think that seeing violence gives us some of the feeling of actually doing violence without us actually hurting anyone.
I think that parents need to be the ones to monitor what their kids see and do. I think that this is a much better approach than actually trying to have the government decide what violence is okay (is it okay when the Road Runner makes Wile E. Coyote fall off a cliff) for all people.
Sure theres some really violent things out there that are psycotic,im a teen so i think differently,we like violent things.I still agree there is a bit of weird stuff out there