I can accept unoriginal alien attacks in The Darkest Hour (Blu-ray release 2012-4-10), in which Americans try to survive an alien invasion in Moscow with help from Russians.  However, I don’t like important things not being explained in movies.  I don’t like people making stupid decisions or go crazy in order to die.  And I hate stories that do not end properly – I’d much rather they have the human win, lose or even become extinct.