Love Exposure (2008)
Love Exposure is a 2008 Japanese film written and directed by Sion Sono. The film gained a considerable amount of notoriety in film festivals around the world for its four-hour duration and themes including love, family, lust, religion and the art of upskirt photography. The first version was originally six hours long, but was trimmed at the request of the producers. Following its release, it won many awards and positive reviews. At the Berlin International Film Festival, it won the Caligari Film Award and the FIPRESCI Prize.
More at Wikipedia.