Technically it's just the PLANET TERROR trailer since Quentin isn't finished shooting DEATH PROOF yet...but whatever.
For anyone who isn't up on movies like nerds like me, GRINDHOUSE is going to be a Quentin Tarantino/Robert Rodriguez film with each doing an hour or so B-Movie about zombies and cars that come to life and naked chicks. In between the actual films are going to be trailers for other B-Movies they just thought of but never will actually see the light of day. It's basically going to be 3 hours of awesomely trashy awesomeness. And the worst date movie ever!!!