it was pretty short, and lagging as hell, but it was OK for a first movie.
(or one of your firsts...)
-you added a play button. thats GOOD. also the movie replayed at the preloader after the movie ended. also good. people hate loops, and this was a coherent movie, at least.
the bad parts were:
-TOO SHORT ANIMATION.
the movie could be a bit longer, and maybe you should add a few more jokes/shooting scenes, maybe between enemies and friends...
also:
-LAGGING.
it was lagging alot. what was your FPS? try a lower FPS is its too high, or a higher, if it's too low.
(for example, if your FPS is at 8 FPS, try at 12 FPS, and if its 30 FPS, try 20.)
also, did you draw those characters by yourself? or were they sprites?
if they are your drawings, its good!
if not, its still enjoyable i guess.
lastly, the only part that i liked was the ending, which was kinda funny, and a plot twist.
kinda original.
i wish that the movie would be a bit longer and without the lag. then it would be perfect.
keep it up son!