The Wedding Date is an 2005 romantic comedy film directed by Clare Kilner, who also directed How to Deal (2003). The release was successful achieving $47 million worldwide at the box office against a budget of $15 million. It is based on the book Asking for Trouble by Elizabeth Young.
Kat Ellis (Debra Messing) is a single New Yorker who returns to her parents' house in London to be the maid of honor at her younger half sister's (Amy Adams) wedding. The best man is none other than her former fiancé, who unexpectedly dumped her two years ago. Anxious about confronting him and eager to impress him, she hires suave male escort Nick Mercer (Dermot Mulroney) to pose as her boyfriend.
Kat intends to make her former flame, Jeffrey (Jeremy Sheffield), jealous, but her plan backfires when Nick convinces everyone, including her, that they are madly in love. Kat then feels herself too falling for Nick as he slowly falls for her. Along the way, Kat discovers that her half sister, Amy, slept with Jeffrey while they were still together. This affair was the reason why Jeffrey dumped Kat because he believed himself to be in love with Amy. Amy confesses her betrayal to her fiancé Ed (Jack Davenport)