Owen Wilson and Vince Vaughn star in David Dobkin's 2005 romantic comedy as John Beckwith and Jeremy Gray, two long-term friends who've worked out that weddings are the ideal place to pick up women at their most romantically vulnerable moment. But having turned crashing weddings into a fine art, complete with a 100-long list of rules, things start to go wrong.
They manage to crash the event of the year, a weekend-long celebration for the wedding of the daughter of William Cleary (Christopher Walken), secretary of the Treasury and a possible candidate for the Presidency.
But John makes the mistake of falling for the bride's sister Claire Cleary (Rachel McAdams), while Jeremy has to fight off her clingy sister Gloria (Isla Fisher). And the longer the weekend goes on, the more likely it is their cover will be blown.
What could have been an unpleasant exercise in misogyny is delightfully undermined at all levels. John and Jeremy are shallower than a puddle and it is the women who have the upper hand (as Gloria proves to Jeremy under cover of the table cloth).
The duo also encounter a vampish Jane Seymour as Cleary's wife Kathleen, who makes a play for John; Ellen Albertini Dow as grandmother Mary Cleary who loudly offers details of Eleanor Roosevelt's love life; and an un-credited Will Ferrell as Chazz Reinhold, the inventor of wedding crashing who has now graduated to funerals.