The Valet
(2007)

Emilie (Virginie Ledoyen) finally agrees to marry Francois (Gad Elmaleh).

Elena (Alice Taglioni) breaks up with Pierre (Daniel Auteuil), who never intended to divorce his wife, Christine (Kristin Scott Thomas).

Pierre gets his comeuppance, though: In the last scene of the film he's photographed being propositioned by a transexual prostitute. The photo ends up on the front page of the tabloids. Ooh la la!

 Thanks Adam!