The only reason it has a decent score is...
Because people will anything starcraft, no matter how bad it is. Not saying it was a bad movie, just not good. I thought it was mediocre, and doesn't really seem front page material. People only like it because they like Starcraft.
Your art was pretty generic, but you could really use more help with faces and the animation for walking, running... And doing anything.
Your sound too, was pretty much all from starcraft...
The plot was dissapointing, Zerg attack Terran, Terran escape. Woo.
That's all... I didn't like this movie, because I didn't think it was good just for the fact that Starcraft is a great game and you made a movie about it.