Jim and Michelle are going to get hitched, but this being the third dollop of an American Pie it doesn't require a genius to suspect things won't go smoothly. Stiffler's determined to organize the bachelor party, if there's something embarrassing to fall into, onto or out of - then Jim's your man, and his father's understanding but misplaced parental homilies are unlikely to help matters. 'American Pie: The Wedding' has 'diminishing returns' stamped all over, but it's still good lewd, crude, sweet-natured fun.