( CNN ) -- `` The Big Lebowski , '' `` Ferris Bueller 's Day Off '' and `` Saving Private Ryan '' have long been national treasures , but the Library of Congress just made it official . Every year , the library 's National Film Registry selects 25 movies to be added to its roster with the intent of preserving them for `` all time . '' The idea is to collect the projects that best represent `` the extraordinary diversity of America 's film heritage '' and are `` culturally , historically or aesthetically significant . '' This year 's additions range from those aforementioned comedies to Pixar 's first short , `` Luxo Jr. , '' to the classic horror flick `` Rosemary 's Baby . '' Interestingly enough , given John Hughes ' prolific career and how many seminal projects he had a hand in , `` Ferris Bueller 's Day Off '' is the first Hughes film to be added to the registry . These 25 films bring the total number of movies in the National Film Registry to 650 . Check out the gallery above to see 21 of this year 's inductees .
The National Film Board has added many more titles . That list includes classic comedies like ` ` The Big Lebowski '' There are now 650 titles in the Film Registry .