Okay, a few slow spots, but overall, like I said, a blast.
There was a few obvious "holes" in the plot here and there, but there are them in far more expensive movies. The "not-Sara-Palin" was sorta funny, her stairmaster is set up on a mountain lion rug!!! , although her "campaign advisor" just annoyed the heck out of me.
They coulda done a little better than space zeppelins for german spaceships, but not bad.
One of the funniest moments
Was when a North Korean Diplomat took credit for the incoming German spaceships and said they were solely designed by our glorious leader

If I had one criticism, it was there was alot of unnecessary swearing/cussing. Not a big deal for me, but their audience could have been greatly expanded, and it did not add one thing to it, in a couple cases it looked like the ubiquitus 4-letter word was somewhat painfully inserted into dialogue....