It's hard to rate it from the view of an adult. And although Ashley Tisdale is hot in this movie I don't give point for hotness.
As others already noted kids seem to love that movie. Even if adults might find it dull, lacking story, actors could perform better. Robert Hoffman did well though in my opinion. The CGI was okay but not overwhelming.
I would like to compare this with the 1986 movie Critters. There were Alien monsters too, possibly trying to take the world over. And some teenagers tried to defeat them. An adult back then might have found it boring and nothing special. But (we) kids sure did love it.
As others already noted kids seem to love that movie. Even if adults might find it dull, lacking story, actors could perform better. Robert Hoffman did well though in my opinion. The CGI was okay but not overwhelming.
I would like to compare this with the 1986 movie Critters. There were Alien monsters too, possibly trying to take the world over. And some teenagers tried to defeat them. An adult back then might have found it boring and nothing special. But (we) kids sure did love it.