American Wedding is the third in the international hit series of "American Pie" films. This time, the gang is all grown up. They get together for one last hoorah in celebration of their friend, Jim's (Jason Biggs) wedding to his longtime girlfriend, Michelle (Alyson Hannigan). Things start to go wrong right at the proposal when Jim's father, Mr. Levenstein (Eugene Levy) forgets the engagement ring. Jim stalls, but somehow Michelle mistakes his friendly banter at the dinner table for an invitation to sex. Mr. Levenstein walks in on them, but despite the embarrassment, Jim gets his proposal out and Michelle agrees. They make plans for the wedding, but the dress Michelle finally agrees on is only made by one designer in the United States. Jim and the rest of the old gang set off to Chicago, in an attempt to locate the designer and find Michelle the dress in time for the wedding.