I can see why a lot of people say this is terrible; the logic and style of it is all over the place. The magic in it is total gobeldy-gook. Not a lick of it makes any sense. But that said, there's some cool visuals and a fairly interesting fantasy story here.

I haven't seen this since I was about 10... it might've been a better idea to leave it at that.

This movie sucks and the lead really sucks.

Most of the points I give it are for the many great visuals and practical effects. It has a run of the mill story and lazy world building (problem arises, "Oh, we'll use the {random fantasy element they explain}"). This is also where the phrase, "Don't bring a medieval blunt weapon to a laser blaster fight" comes from.

I thought this film was really good when I was a kid, rewatching it now and understanding the plot I'm kind of shocked it's an alien invasion film and not a movie about a cool throwing star.