Goon is a hockey comedy with Canada written all over it.
Starring Seann William Scott as Doug Glatt, the film is about the improbable journey of a bouncer from a directionless buffoon to a man with a purpose. Doug "The Thug" has a knack of beating people up while withstanding a great deal of beating himself and his friend (played by Jay Baruchel) thinks there is one place where that kind of talent is valued: Canadian semi-pro hockey.
The film's humor comes from jokes about hockey, Canadian stereotypes, and Doug's half-wittedness. So you can just sit down, set your brain to cruise mode, and enjoy the show. There won't be anything much for folks who don't dig sports, violence, and trash-talking.
As a film, Goon is like a kid trying to learn how to skate-- earnest and tries, but manages to fall on its behind most of the time.