Krull - i suppose theres some sort of spoilers, though.. it was made in like 1987 so i dunno why anyone would bitch about spoilers
A movie about a young prince who's whole kingdom pretty much gets fucked up by some evil demon lord and steals the princes girlfriend. old guy comes to the kingdom, goes with prince to retreive glaive, prince proceeds to shove hand into molten lava to retrieve glaive.
they run into some crazy ass shit magician who can turn himself into animals, he played the teacher in willy wonka for those who need a visual reference, old man tells the prince the only way they can get his woman back is to find the demon lords dark citadel, which moves to a different location every day, so they go to some old seer guy for help, Emerald seer or whatever.
before the old man they run into some bandits and team up with them because the prince promises them freedom, yadda yadda yadda, CYCLOPSES AGHH!, they go into a quicksand marsh, OH NO HE HAS BLACK EYES! AGH!, yadda yadda, prince fucks up demon and they all live happily ever after.