American Pie 3: American Wedding (2003)

In this edition, Jim Levinstein asks Michelle Flaherty to marry him. The big moment is to happen in a very nice restaurant. Jim hints that he wants to ask Michelle a very important question, and his hinting about is misinterpreted by Michelle, who crawls under the table to do what she thinks Jim wants. In the mean time, Jim's dad, played by SCTV alumni Joe Levy, shows up and sits in Michelle's chair, unaware that she is under the table. Michelle goes unnoticed until Jim's dad mentions the wedding proposal, which causes Michelle to bump the underside of the table. Jim jumps up, his pants are down, and it's embarrassment and pandemonium. Get on the guest list for this Unrated rite of passage. Jim and Michelle are saying 'I do,' and Stifler is planning the bachelor party!