Flash Gordon (1980) has got everything you could ever want from a B-grade sci-fi movie. Vast, deco-inspired sets that appear to be made of cardboard. A super villain costume so heavy with bling that Max von Sydow could barely stand in it. Harems, jungles, mindless minions, oppressed planets, mad professors, evil overlords, bore worms, a cheesy script coupled with hammy delivery (making the most delicious sandwich of dialogue ever), and gloriously camp costumes. I love it.