<p>This undated handout photo provided by the Library of Congress shows a scene from the movie "Airplane."</p>
January 2, 2011
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January 2, 2011 8 p.m.
The Force is strong: 'Empire' tapped for registry
Selection includes 'Saturday Night Fever,' 'Airplane'
BALTIMORE - Darth Vader proclaiming he's Luke Skywalker's father, John Travolta preening in his underwear and an early 20th-century deaf activist communicating in sign language are among the images that will be preserved by the Library of Congress as part of its National Film Registry.