It has been reported that the US Library will be preserving Episode 5: The Empire Strikes Back as part of it's National Film Registry.

Also included is Star Wars director George Lucas's student film Electronic Labyrinth: THX 1138 4EB, made in 1967.

Spike Lee's Malcolm X, about the black political revolutionary and Saturday Night Fever also make the list.

Each year, 25 "culturally" significant films are added to the registry, which was founded in 1989.

Lucas's Star Wars and American Graffiti are among the 550 titles already selected for preservation.

The Empire Strikes Back now takes it's place in history to guarantee future generations will also get to enjoy this movie. My thoughts though were which version they'd choose to archive. As the original film strips were in a bad way when they came to make the Special Edition they did a lot of restoration work at that point to make it usable for future releases without losing it forever. However when asked about Blu-ray versions of the original theatrical releases they claim the quality is not good enough but the DVD releases are indicating that they made their changes as they restored the film. In order to preserve the film it would require restoration work to take place if they used the original, which is what makes me think they may choose to instead archive the Special Edition or DVD edition to make the job easier and cheaper.