Prisoners Of The Lost Universe (1983)

I think I've just watched the stupidest film ever. Which is quite an achievement, both on the watching front, and on the part of the movie itself. It's not easy to be the stupidest film ever, given how many contenders there are. This one takes a pretty good shot at the title, though. Actually it takes several.

( And no, it's not 'Plan 9 From Outer Space'... )