Claim: Vince Vaughn appeared in Wedding Crashers.

Wedding Crashers is a 2005 American romantic comedy film directed by David Dobkin and written by Steve Faber and Bob Fisher . Starring an ensemble cast led by Owen Wilson , Vince Vaughn , and Christopher Walken , and featuring Rachel McAdams , Isla Fisher , Bradley Cooper , Jane Seymour , the film has a notable cameo appearance by Will Ferrell .   The film opened on July 15 , 2005 through New Line Cinema to critical and massive commercial success , grossing $ 285 million worldwide on a $ 40 million budget , and is credited with helping to revive the popularity of adult-oriented , R-rated comedies .