Films you should see before you die

A few years ago my parents asked their friends and colleagues what films they thought everyone should see. Slowly, we worked our way through the list over a couple of years. The idea was to broaden our knowledge of film. I am now almost 20 and am surprised how few of the films on this list many of my peers have even heard of. We lost the list, but hopefully I will be able to remember most of the films, with a few additions of my own.