West Side Story is another classic, along the lines of To Kill a Mockingbird, except with some fantastic singing and dancing. The social message is the whole point of the movie; it is a modern day Romeo and Juliet, where the boy and girl, due to their social backgrounds, are NOT supposed to be together but fall in love anyway. There is a lot of stuff about race, gangs, etc. that is still relevant over 40 years later. There are fights and violence and a main character gets killed, so this is not for the littlest ones... save this for your jr. high school and up age kids, unless very mature.