Roger Ebert gave The Happening a 3 out of 4 Stars! You can read his review at the link below:
Here are some more reviews:
This is something I've gotten a few e-mails about the huge amount of advertising outside the US movie market and here is an article about Mexican movie posters for The Happening:
On Yahoo! Movie the average user review is a B and the average critic review is a C-. You can weigh-in at http://movies.yahoo.com/movie/1809921595/info
I'm seeing the film tonight with a big group of friends and will post my review tomorrow.