Library of Congress's "National Film Registry"
Since 1989, the Library of Congress has chosen up to 25 films covering a stunning range of American filmmaking – including Hollywood features, documentaries, avant-garde and amateur productions, films of regional interest, ethnic, animated and short film subjects – all deserving recognition, preservation and access by future generations.
As of 2012, there were 600 films selected. The films that are selected must meet two criteria:
1. they must be culturally, historically, or aesthetically significant
2. they must be at least ten years old
Films are listed alphabetically, with an index [as of 2012]:
1. Ab-Bl 5. Gr-It 9. Pe-Ro
2. Bl-Cu 6. It-Li 10. Sa-St
3. Cz-Fa 7. Li-Mu 11. St-To
4. Fa-Gr 8. Mu-Pe 12. To-Za