This movie reminded me of all the great summer movies I loved as a child in the '70s. It starts out as a classic summer camp movie, when Alex-- the main character-- is taken (against his will) by his loving mother to a second-rate camp called The Rim of the World. The film then quickly morphs into an enjoyable alien invasion movie. Along the way, the four protagonists, a nerdy white kid, a chubby black kid, a female Asian kid and a misunderstood Hispanic kid overcome personal, as well as apocalyptic difficulties, and save the world. I loved the "Breakfast Club" scene when each kid declares him or herself as what the world categorizes them as... I totally enjoyed this movie which was produced and directed by McG, the director of Terminator Salvation. My only criticism was that a few lines of the kids' dialogue were a little muffled and hard to understand. Good movie from start to finish. Watch and judge for yourself.