The History of Film
Er...you know, I think I'll just copy/paste the explanation. "This graphic chronicles the history of feature films from the origins in the 1910s until the present day. More than 2000 of the most important feature-length films are mapped into 20 genres spanning 100 years. Films selected to be included have: won important awards such as the best picture Academy Award; achieved critical acclaim according to recognized film critics; are considered to be key genre films by experts; and/or attained box office success." It's created by Larry Gormley and is pretty damn cool.
Gives you something to watch on the weekends. Check it out over at History Shots - you can also buy a print there.