Love Exposure (2007)

"Based on the life of one of Sono's friends, LOVE EXPOSURE is all about Yu, the son of a Catholic priest who loses his religion when his mother dies. Obsessed with sin and confession, Dad criticizes the state of his son's spotless soul, claiming that his confessions are weak and simple and that he must confess real sins. Unable to make anything up, there's nothing for Yu to do but become a sinner, and so the confused kid learns the ninja-tastic martial art of taking up-skirt photographs. Now a full-fledged pornographer he's really got something to confess, earning beatings from his shocked dad. But in the middle of his new career, while dressed (as the result of losing a bet) as Sasori, the hero of a series of 70's women-in-prison movies, Yu meets the love of his life, Yoko (Hikari Mitsushima), who's in the middle of beating up a bunch of horrible men. Drag-clad Yu jumps into the fray and that's when things get complicated. A villainess appears in the person of the giggling young schoolgirl, Aya (Sakura Ando) who shows up, stroking her green parakeet the way a Bond villain strokes his white cat, and soon she's manipulating these two star-crossed lovers in the name of the cult for which she works, the Zero Church."