PLOT

At dinner, Jim Levenstein prepares to ask Michelle to marry him when Jim's dad calls to inform him that he has the ring. Michelle misinterprets when Jim stalls the question and Jim's dad arrives as he is receiving fellatio from under the restaurant table. The mishap grasps the restaurant's attention but Jim proposes and Michelle accepts.

Jim wishes to exclude Steve Stifler from the wedding; who becomes upset when he learns of this. Stifler agrees to teach Jim how to dance if he is allowed at the wedding. Jim asks Stifler to tone down his obnoxious personality in exchange for planning the bachelor party. Jim, Stifler, Paul Finch, and Kevin Meyers travel to Chicago when they discover there is only one designer who makes the dress that Michelle wants. Stifler unwittingly walks into a gay bar, and his raucous behavior gets him into a dispute with several patrons. Stifler defeats Bear in a dance-off, who offers to provide strippers for the bachelor party. Dress designer Leslie reveals himself and agrees to make the dress for Michelle. Michelle's parents, who were initially skeptical of Jim, agree to have dinner with him.

Michelle's younger sister, Cadence, flies in for the wedding. Both Finch and Stifler are attracted to her, and in an effort to win her over, they each adopt the other's personality. Stifler arranges the bachelor party but does not inform Jim, who unknowingly has arranged dinner with Michelle's parents at his home. With assistance from Bear, who poses as a butler named "Mr. Belvedere", Jim nearly succeeds in keeping the activities a secret, until Michelle's mother opens a closet door and is shocked to find Kevin inside; blindfolded, stripped to his boxers, and tied to a chair. The boys explain that it was an failed attempt to make Jim seem like a hero, and Michelle's parents tell him that if he puts that much effort into the upcoming marriage, they can give their blessing.

Michelle is concerned that Jim's paternal grandmother disapproves of the wedding because she is not Jewish. On the night before the wedding, Stifler inadvertently disrupts the walk-in refrigerator's power supply while retrieving a bottle of champagne in an attempt to seduce Cadence which kills the flowers. Previously, Stifler—unaware of Cadence's presence—had revealed his true rude and obnoxious personality. Angry, Jim asks him to leave, and all the others, including Cadence, support Jim's decision.

Feeling guilty for his thoughtless behavior, Stifler convinces the florist to put together a new batch of flowers, and he enlists the help of his football players and Bear. As a gesture of remorse, he also gives a rose to Cadence. Moved by his actions, Cadence agrees to have sex with him in a supply closet before the ceremony, but Stifler's presence is delayed by a brief thank-you meeting Jim calls among his groomsmen, citing how he is grateful to have friends like them. Quickly returning to the hotel, Stifler hears someone in the supply closet and steps inside, unaware that Cadence was interrupted by wedding preparations and that the ushers, the "MILF guys" from high school, placed Jim's grandmother in that closet to sustain her hostility about the wedding; Stifler only realizes this upon walk-in by Finch and Kevin. She becomes pleasant, particularly towards Stifler, making Michelle and Jim's dad unknowingly happy.

Despite the chaotic events leading up to it, Michelle and Jim get married. At the reception, the couple dances while Stifler dances with Cadence. Finch sits by himself when Stifler's mom arrives. Although agreeing they are over each other, Stifler's mom mentions having a hotel suite and invites Finch to join her. The film ends with the "MILF guys" spying on Stifler's mom and Finch having sex in the hot tub.

CAST

Jason Biggs as Jim Levenstein

Seann William Scott as Steve Stifler

Alyson Hannigan as Michelle Flaherty

Eddie Kaye Thomas as Paul Finch

Thomas Ian Nicholas as Kevin Myers

January Jones as Cadence Flaherty

Eugene Levy as Jim's Dad

Molly Cheek as Jim's Mom

Deborah Rush as Mary Flaherty

Fred Willard as Harold Flaherty

Angela Paton as Grandma

Eric Allan Kramer as Bear

Amanda Swisten as Fraulein Brandi

Nikki Schieler Ziering as Officer Krystal

Lawrence Pressman as Head Coach

Reynaldo Gallegos as Leslie Summers

Loren Lester as Celebrant

Justin Isfeld as Justin

John Cho as John

Jennifer Coolidge as Stifler's Mom

Julie Payne as Mrs. Zyskowski

Willam Belli as Butch Queen

David St. James as Front Desk Manager

ADDITIONAL INFORMATION

known as American Wedding or American Pie: The Wedding, in some countries

sequel to American Pie and American Pie 2

the third (originally intended final) installment in the American Pie series