Filmsite.org's "100 Greatest Films Pt.1"

as written by Tim Dirks:

"Arguably, there is reasonable consensus by most film historians, critics and reviewers that these selections are among cinema’s most critically-acclaimed, significant "must-see" films (of predominantly Hollywood-American production). These 100 choices were limited to English-language, theatrically-distributed, narrative feature films. [That means foreign-language films, documentaries, TV movies and mini-series, and short films were not considered.] Emphasis in these selections is purposely directed toward earlier, more classic Hollywood/American films (and other English-language films) than more recent films, although some recent films (and British films) are included."

NOTE: Both "The Godfather" and "The Godfather Pt. II" are counted as one film on the original list.

Part 1: http://www.listsofbests.com/list/12117
Part 2: http://www.listsofbests.com/list/12136
Part 3: http://www.listsofbests.com/list/24941