Had the kids ever apologized for mugging the lady at knife point I would have enjoyed the movie. Instead (spoilers) since they remained unapologetic to the very end, even going so far as to "blame her" for being afraid of them, all that alien killing in no way redeemed them in my eyes. Bunch of oiks at the start, bunch of oiks at the end.
It was unspoken.
One: Phoebe Tonkin Two: Dianna Agron Three: Debby Ryan