As part of the ongoing 40th anniversary celebration of The Empire Strikes Back, the official Star Wars website has been sharing exclusive interviews, videos and behind-the-scenes stories, including one that will absolutely floor you about how the original ending of the movie was replaced after it had been released into some theaters. The Empire Strikes Back initially premiered with a 70mm special engagement on May 21, 1980, three weeks before it would be released nationwide in 35mm. But after that initial release, George Lucas called Industrial Light & Magic general manager Tom Smith, and asked for some additional …