Like many other people here: here are some vague childhood-memories from a movie i'd love to see again:
i remember a guy with long dark hair, he finds some weird shaped weapon, like a bigger ninja-star, i think he finds it in a lava-stream. It has earth/mud/ a crust on it.
But underneath its made of gold.
Another scene of the same movie is the hero doing some gymnastics-moves, and meanwhile kicking an entire town in the face. (i think his attackers were zombies?)
gymnastics moves like they do on this:
man, those memories are so vague, and writing it down makes it look crazy... all the more reason to find out what it is.
Oh yeah: there was a white horse in it too, i think?