You need to improve it
The people that watch this movie don't even know why the sniper kills the police. You should improve the plotline. Next, the graphics are really bad. It took me a while to realize that those grey circles are humans. And that helicopter looked like a flying "thingy" with insects flying around it. Finally, those sounds in the beginning really annoyed me. You tried to make them like the cheers of the crowd, but it was like thousands of people seen a ghost and screaming, or something like that. Work much harder next time.