[Philip Lelyveld comment: this graphic is an interesting bit of trivia. The author spent 5 years developing it!]
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.
See the graphic here: http://www.historyshots.com/film/index.cfm