Well done
I don't throw around with 10s, so don't be disappointed :S
I think you could work a lot on your shading and lightning. The quality of animation sometimes was really good and sometimes almost crappy. Don't be impatient when doing your work. The time you invest WILL pay off, definetly.
What you need now - in my opinion - is just practise in drawing.
For the sound, nothing really to say. The music was decent, overall fitting but not really special. I didn't really have the feeling music and animation were forming an ideal hybrid masterpiece, but they didn't bite each other either. I can see you put in some thought like in the scene where Hank enters the building and opens the doors like in the lyrics (so he did it literally? lol!).
I'd recommend improving your graphics because the gap between some scenes in their quality were drawing my attention more than the storyline or action sequence.
Look at some tutorials, maybe check out the devianArt community. Don't give up. This movie was standing out of the masses of crappy movies that enter the flash portal every day. Good luck on your way, buddy!
Never stop, always keep going and improving!