3D豪情 (Naked Ambition) (Blu-ray release 2014-7-11) is a Hong Kong sex comedy.  It is a sequel to a 2003 movie with the same title, but the story and characters are unrelated.  A Hong Kong guy goes to Japan to become a porn star and work with famous Japanese porn actresses.  The comedic aspects of this movie primarily come from reversing the roles of male and female in porn video – the male is submissive and is treated as a sex object.  The plot is just an excuse to connect various very funny erotic scenes, but when the movie tries to tell a slightly more serious story, it does not really work.