This is a good site to bookmark, http://www.kids-in-mind.com/ It rates movies in 3 different categories: sex and nudity/ violence and gore/ profanity. It is not a preachy site just lets you make informed choices.
For example I don’t really care that much about profanity but violence is a biggie. It gives a review of the movie and then ratings from each category on a scale of 1-10. I believe the sites is sun by rottentomatoes.com and not a political or religious group. Pretty much any movie you can thnk of there- as well as current releases.
I don’t lik to “censor” per se but realize that we censor all the time- I don’t sit down and watch the Sopranos at 11 am with a cup of coffee and my 9 year old. I don;t “refuse” to let my children watch anything- but on the other hand I don;t offer them the choice either. So this site is meant to help censor but to help parents make choices.. If you can follow the Big Brother doublespeeak :-).. I don;t censor- I make choices.