My 2 favourites:

1 - Dammit! I can't dredge up the name!! But it's the one where there about 3/4 guys, stuck in a gungy spacecraft that is blowing up suns and things. They eventually meet something they can't overcome (a ticking time-bomb thingy), and it ends up with one of them "surf-boarding" into oblivion..
(What the h*ll was that one called?????)

2 - Flesh Gordon - loved the special effects!

Cheers,
Diolma