Over Her Dead Body (2008)

Devastated when his fiancée Kate is killed on their wedding day, Henry reluctantly agrees to consult a psychic named Ashley at the urging of his sister Chloe. Despite his skepticism over her psychic abilities, Henry finds himself falling hard for Ashley, and vice versa. But there is a big snag. Ashley is being haunted by Kate’s ghost, who considers it her heavenly duty to break up Henry and Ashley's fledgling romance, if it is the last thing she does on this earthly plane.