This is really your first movie? Wow!
First things first -- Awesome movie. You did a great job, especially so for a first movie.
With that said...
Very good animation for a first movie. The characters didn't seem to be inconsistant, contrived, or overly static. I congratulate you in those regards.
Sound -- Yes. YES! I tested by pausing during the movie and it's true, though I cannot believe it -- Someone actually set their music to STREAM instead of EVENT! You don't know how relieving it is to see someone who knows what they are doing for a change. Really. Thank you thank you thank you!
Interactivity: Play button. Replay button. Yay!
Style -- Excellent. With refinement, you have oppertunity to grow. With longer movies and more advanced graphics, you might be able to get an award, to boot!
Violence: Lots and lots of explosions and gunfire, and with paintballs as well. Excellent. >=)
Humor: Ten. Pure 10. This thing made me laugh more than I have all week. You have a great sense of humor!
Overall: 9/10. Rock on, man! I love this. ^_^