The Library of Congress has released its annual list of 25 films that will be added to the National Film Registry. More than 2,000 movies were nominated.
John Travolta's disco moves can now be studied for generations to come.
“Saturday Night Fever” and “Empire Strikes Back” are just two of the movies the Library of Congress chose to be preserved forever.
"Well it's not like the Academy Awards,” said James Billington. “These are films, historically, culturally or artistically important for the country."
The library chooses 25 significant films each year for its National Film Registry.
“The Exorcist” made the list, one of the most influential horror films of all time.
“McCabe and Mrs. Miller” reinvented the Western.
There are comedies like "The Pink Panther" and "Airplane".
And "Saturday Night Fever" is said to have created a whole new kind of movie-musical.
With this year's selection, there are now 550 movies in the National Film Registry. More than the Library of Congress can store in Washington, so it built a special cold-storage facility in Virginia, now holding over a million films.
Among this year's rare gems: one of the first motion pictures ever made, and this San Francisco film from 1906, shot a month before an earthquake devastated the city.
"We're trying to preserve it because it’s all on very impermanent, perishable material,” said Billington.
And the Library of Congress is ensuring that the "force" of these films will be with us forever.
You can find the complete list of films on the Library of Congress website.