After getting their Spring Breakers phase out of their system, millionaire film students Jay Z and Beyoncé are exploring more classical influences. Part one of “Bang Bang,†the short film that played during the couple’s On the Run tour, borrows equally from Quentin Tarantino, Sergio Leone, and the French New Wave, and it’s very charming in a junior-year sort of way. You can practically hear the 16mm projector.