Saw it today with my son. Not that good. JJ Abrams tries to be Spielberg, but can't quite do it.
The problem is that unlike a good Spielberg movie where the character's motives are clear to everyone (Jaws- the shark is hungry; ET- the good alien wants to go home, etc)....Super 8 had no clearly defined motives. The alien is supposedly intelligent, yet it runs around town randomly kidnapping people and hanging them upside down in its subtarranean lair?
Meanwhile, the middle school science teacher is really a former government scientist who hides proof of alien life in his middle school locker, and survives a head-on collission with a train while driving a truck? C'mon.
The girl and boy in the movie are wonderful, great casting. The rest of the kids were irritating, to tell you the truth. Again, JJ Abrams tries to be Spielberg with the kids, but he fails.
Overall, there were just too many plot implausibilities and other short comings. I expected a lot more.