I hope they do a sequel, be interesting to see more. A few interesting things:
1) why did the alien ship come to Earth? I presume that it had some troubles and had to find the closest planet that could sustain the alien species whilst repairs were made.
2) why did the command module leave the mothership so early on? I presume so that it would protect the mothership's technology from the humans.
3) 20 years to collect fuel? mmm.
4) some of the aliens (Christopher as an example) are intelligent, rational with solid morals. Other aliens are just well, troublemakers with little regard for anything except themselves. I had the impression that the aliens came to Earth not realising it had an evolved species already on it, but by the time they got here it was too late to go elsewhere. So they mostly played subservient and docile to wait out the 20 years it would take to refuel the mothership. Maybe some of the alien species got bored and went stir crazy?
5) the aliens that were shown being found on the mothership looked like they lived in squalor. I wonder why?
6) with such advanced weaponry, I was surprised at how docile they were. Especially with such large numbers of aliens.
I had a good chat about all of this with my mate last night. I see parallels between the aliens and humans - most humans are well behaved, but some are troublemakers, the same going for the aliens it seems.
I was quite impressed with the alien weaponry being biometrically tied into the alien's DNA. Very cleverly done. The racial discrimination side of thigns was very well done imho - showing the scant regard for life that is so common in these types of situations.
Sorry, but I couldn't help but voice my thoughts on the movie
Dave