This is just a good, entertaining movie.
Possibly the most recognizible face in this movie is that of Ben Kingsley who plays Merlin. Yes, THE Merlin. If that statement alone doesn't give you an idea of the story line then maybe you should go watch reruns of F-Troop instead. (although admittedly, I like F-Troop)
If you like these good old stories of ancient myths you'll really enjoy this one. The direction and cinematography are good, as well as the special effects. It stands as a good story by itself until when you reach the very end and suddenly realize where this story is leading. But I won't tell you, rent it and watch it for yourself.