License to Wed (2007)

Sadie Jones (Mandy Moore) has long-desired to have an elaborate and expansive wedding in her family church. She and her long-time fiance Ben Murphy (John Krasinski) discover however, that the only slots available to them in the church's schedule is in two years or three weeks. Unfortunately for the couple that is but one hurdle to overcome. The other is the church's wacky and eccentric minister, Reverend Frank (Robin Williams), who demands that the couple complete his grueling "foolproof" marriage preparatory course as a pre-requisite for marrying them. Consisting of silly classes, insane homework assignments, and Rev. Frank's invasion of their privacy, his course puts Sadie and Ben's love of each other to the test showing if it is puppy love or truly a match which will survive long-term.