Love Exposure (Ai no mukidashi): Special Edition (2008)

Tokyo teen Yu Honda (Takahiro Nishijima) is the traumatized son of a widower-cum-Catholic priest (Atsuro Watabe), who begins a sexual liaison with parishioner Kaori (Makiko Watanabe). When Dad's affair comes to a halt, he begins admonishing his son to confess to so many sins that the 17-year-old takes up new ones to appease his father's increased religious zeal. One "sin" - surreptitiously taking candid photographs of panties worn by female pedestrians - becomes a vocation. Unfortunately, a deal with a porn company comes undone when Yu turns down starring roles, because he admits he's saving himself for a Virgin Mary-like ideal woman.