Enter the Void (2009)

This psychedelic tour of life after death is seen entirely from the point of view of Oscar (Nathaniel Brown), a young American drug dealer and addict living in Tokyo with his prostitute sister, Linda (Paz de la Huerta). When Oscar is killed by police during a bust gone bad, his spirit journeys from the past — where he sees his parents before their deaths — to the present — where he witnesses his own autopsy — and then to the future, where he looks out for his sister from beyond the grave.