<Li> Richard Riehle (uncredited) as Funeral guest </Li> <P> Arizona Senator and 2008 Republican presidential nominee John McCain and Democratic strategist and CNN contributor James Carville both have a brief cameo appearance in the film towards the beginning, where both are seen congratulating the secretary and his wife on their daughter's wedding . </P> <P> The film was written by Steve Faber and Bob Fisher and produced through New Line Cinema, with shooting taking place on location in Washington, D.C. and Maryland's Eastern Shore . Principal photography began on March 22, 2004 and the movie had a 52 - day shooting schedule . The main Cleary wedding reception scene was filmed at the Inn at Perry Cabin in Saint Michaels, Maryland . </P> <P> Dobkin has said that the script originally set the film around Cape Cod, but a need to film in spring made this impractical . He suggested moving the shoot to Washington, his home town, feeling that his knowledge of the area would make choosing locations easier, and that using the city as the setting for a comedy would be an unexpected choice . </P>

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