http://www.searchreslt.com/metal-star/
what is the film's title where the hero can control a metal star as a weapon. finally got stuck at monster?
Krull. I'm pretty sure that's what you're talking about. The lead character had to ride on horseback a lot because the enemy's castle kept moving to a different place each day....and the metal star was in five pieces originally that had to be assembled. Am I right?
Fist of the Metal Star