The eagerly awaited sixth film in the Harry Potter series opens in the US on July 15. Daniel Radcliffe, Rupert Grint, Emma Watson, and Sir Michael Gambon reprise their roles as Harry, Ron, Hermione, and Headmaster Albus Dumbledore, respectively. Watch the exclusive new film clip for Harry Potter and the Half-Blood Prince on the movie trailer’s site. And check out the trailer for the new Harry Potter game, as well.