I've got a copy of it on tape that I picked up a one of the Fangoria Weekend of Horror conventions about 10 years ago. I even had David Prowse sign it!
I think I've watched it twice since I bought it. It's pretty damn bad. The only redeeming things about it are the cartoon with Boba Fett, and the footage used between some scenes that has things that were cut from the original Mos Eisley scenes from Star Wars (some scenes of aliens walking in an alley, and some cantena shots). All the rest is pretty awful. Bea Arthur as the cantena owner, singing with the aliens? Check! Art Carney as a smuggler? Check! Chewbacca's dad Itchy, wife Malla, and son Lumpy? Check! And best/worst of all-Jefferson Starship performing a really bad space themed rock song!
Maybe I'll bring it to GenCon next year, and a bunch of us can watch it. Or maybe not...