Just watched the movie, it came out in theaters today. I would advise that only sci-fi fans and those that understand this movie was made with a $500K budget + $10-20 million for CGI. It's much like District 9 in that aspect.
Because of that, the movie was actually quite good. I liked the special effects and action. The storyline flowed nicely and the ending was NOT expected.
I just watched this, probably going to upload it for the archives later on today...I'd say it is a mix between district 9 w/a bit of Independence Day sprinkled in there but not quite as good...Worth a download...