The trailer actually made the movie look pretty good! Intrigue about aliens being among us and not being able to tell who they are.
Yeah, that's right, Chloe Grace Moretz, she played Hit Girl. I also liked her a lot in 30 Rock (she had a feud with Alec Baldwin's character Jack Donaghy).
I think she's a good comedy actress or good supporting role, but if this movie is any indication, I don't think she has the star quality it takes to carry a whole movie. Either that, or the writing was just that bad that she couldn't rescue it.