You may have difficult with the last 20 minutes then....

We felt it was very um... american... in the ending... (not sure what americans actually think about these overtly patrotic endings).
We also, after careful assessment, we actually believed if the hero wasn't such a dick, then the aliens would have been much easier to deal with...
The fun bit was my gf didn't realise it was an alien invasion movie, so she was actually surprised! (in a good way, she was beginning to worry it might be a serious drama...)
Cant say much else without spoiling it (and there is so little to spoil). The one positive note was the pop star renea. Her role was low key (very much a supporting role) and thus her acting skills were not strained. Actually a good starting role for her, one that wont kill her new career. Its not uncommon for a diva to 'star' in their first movie and that's almost never a good idea...