I really enjoyed your movie. I liked the plot, the music in the background and the filmmaking. I think you should increase the contrast on some of the dramatic scenes though. Like this scene:
One thing that got me confused is why the main characters wanted to leave the house in the first place, why did they follow all the aliens everywhere? I think you should make one of the Aliens destroy your house so you need to get somewhere. Also, I don't think gasoline would make that big of an explosion, (especially killing the aliens but not themselves) inside a 5 gallon plastic can. I think you should work on the end a little more.
Overall, great movie.