The Wedding Ringer

The Wedding Ringer is a 2015 comedy film directed and cowritten by Jeremy Garelick. It stars Kevin Hart, Josh Gad, and Kaley CuocoSweeting. The film was produced by Adam Fields, Will Packer Productions and Miramax Films, distributed by Screen Gems, and released on January 16, 2015.

Jimmy Callahan provides best man services, through The Best Man Inc., for guys who dont have the friends necessary for a wedding. Doug Harris, a successful tax attorney, and his fiancee Gretchen Palmer are planning for their wedding day. Doug becomes frantic searching for a best man, and is referred to Jimmys company by his party planner, Edmundo.Doug asks Jimmy to pull off a Golden Tux seven groomsmen to match with Gretchens bridesmaids, which has never been done before. After hearing Dougs plea, Jimmy agrees to be his best man for a fee of 50,000 and all expenses paid. When going over the formalities for the wedding, Doug tells Jimmy his name will be Bic Mitchum. ........

Source: Wikipedia