I just saw that movie. It was pretty good. Here's my analysis of it.

Action:
The action was pretty awesome. A lot of fighting and explosions. The action did, however, seem to dominate the movie.

Plot:
The plot was ok. It could have been a hell of a lot better. Too cliche.

Special Effects:
The effects were freaking sweet. My favorite was when the imoogi changed into the dragon. Very nice.

Dialogue:
The dialogue sucked. It had it's moments, but it was pretty cheesy.

Overall, I would give the movie a 7. Definitely one to see in theaters, just for the fight scenes alone.