Yahoo Movies has posted an interesting article regarding a short 25-minute fantasy epic that was shown for a brief time back in 1980 in some overseas theaters before fans viewed The Empire Strikes Back. According to the article, George Lucas had instructed 20th Century Fox to create something that would complement the dark nature of this Star Wars film.
This is a pretty fun read, and the short film sounds interesting. You will even see some trees that look a bit like the ones on Dagobah here – check it all out after the jump!
Note: It also sounds like there may be a chance that this short film could be included as a bonus feature on an upcoming re-release of The Empire Strike Back on DVD/Blu-ray.