Fact1: John Beckwith and Jeremy Grey are divorce mediators in Washington D.C., Fact2: crash wedding parties divorce mediators in Washington D.C. to meet and bed women, Fact3: Jeremy takes John to At end of season of successful crashes wedding for daughter of U.S. Secretary of Treasury, Fact4: Gloria invites Jeremy and John to extended weekend party, Fact5: John overrules Jeremy to accept and get closer to Claire
Output: John Beckwith Owen Wilson and Jeremy Grey Vince Vaughn are divorce mediators in Washington D.C. who crash wedding parties to meet and bed women. At the end of a season of successful crashes, Jeremy takes John to a wedding for a daughter of the U.S. Secretary of the Treasury, William Cleary Christopher Walken. Once inside, the pair set their sights on Clearys other daughters, Gloria Isla Fisher and Claire Rachel McAdams. Jeremy ends up having sex with Gloria on a nearby beach during the reception. Gloria is possessive and quickly becomes obsessed with Jeremy, and Jeremy urges John to escape the reception with him. Meanwhile, John attempts to court Claire, the maid of honor, but is interrupted by her hotheaded boyfriend, Sack Lodge Bradley Cooper, who is unfaithful and disrespectful behind her back. When Gloria invites Jeremy and John to an extended weekend party at their family compound, John overrules Jeremy to accept and get closer to Claire. John and Jeremy become acquainted with the Clearys at their home: the Secretarys wife Jane Seymour sexually harasses John; Glorias brother Todd Keir ODonnell tries to seduce Jeremy during the night; Gloria continues to lavish unwanted sexual attention on Jeremy; and Sack repeatedly injures Jeremy during a game of touch football. At dinner, John spikes Sacks wine with eyedrops to make him sick and get more time to connect with Claire. John and Claire continue to bond the next day on a sailing trip. The suspicious Sack takes the men on a hunting trip, where Jeremy is shot in the buttocks. While he recovers, John and Claire go on a bike ride to a secluded beach. Claire finally admits she is unsure how she feels about Sack and ends up kissing John passionately. Meanwhile, Gloria tends to Jeremys wounds and reveals to him that she is not as innocent or inexperienced as she initially let on. Jeremy realizes that he himself has been played and that he may be in love with Gloria. Ready to confess everything to Claire to convince her not to marry Sack, John is interrupted by Jeremy being chased out of the house: Sack has investigated and revealed John and Jeremys identities to the family. Betrayed, Claire turns away from John and the Secretary tells them to leave. Over the following months, John attempts to reach Claire but she refuses to see him. John attempts to crash Claire and Sacks engagement party but is caught and beaten by Sack. Confronting Jeremy about abandoning him, he learns that Jeremy has secretly continued his relationship with Gloria. Betrayed, John spirals into depression, crashing weddings alone and becoming nihilistic and suicidal. Meanwhile, as Claire and Sack plan their wedding, Claires doubts grow. Jeremy proposes to Gloria and tries to ask John to be his best man, but a depressed John refuses. John visits Jeremys former wedding crashing mentor, Chazz Reinhold an uncredited Will Ferrell, who convinces him to crash a funeral. While there, he reconsiders his belief in love and marriage and rushes to Jeremys wedding. John joins the wedding midceremony to Jeremys delight, but Claire is upset by his appearance, prompting John to profess his love to her and his regret for his past behavior in front of the congregation. Sack interrupts, but Claire finally tells him that she cannot marry him. Sack tries to attack John, but Jeremy intervenes to knock him out, and John and Claire kiss. After the wedding, the two couples drive away from the ceremony together, discussing crashing another wedding together.