Also, one of the best ways to gain sensitivity to something again is to be completely away from it. (In this case, that might involve abstaining from television and movies as well as other things. Of course this can be easier said than done given that it might be difficult due to other people around, etc.) The human being has an enormous capacity to forget, and after a few years of not being exposed to something, it is likely that you will be taken aback by it if you see it.