Harry Potter and the Half-Blood Prince is a 2009 film based on the sixth novel by J. K. Rowling. Harry Potter and the Half-Blood Prince is the sixth novel in J. K. Rowling's Harry Potter series. Set during Harry Potter's 6th year at Hogwarts, Lord Voldemort is. Tom Felton talks about the changes that Draco Malfoy goes through in the new Harry Potter and the Half Blood Prince. Cast: Daniel Radcliffe, Emma Watson. Harry Potter and the Half-Blood Prince is the sixth and penultimate novel in the Harry Potter series, written by British author J. K. Rowling. Set during protagonist. Daniel Radcliffe as Harry Potter. Rupert Grint as Ron Weasley, one of Harry's two best friends. Emma Watson as Hermione Granger, one of Harry's two best friends. Directed by David Yates. With Daniel Radcliffe, Michael Gambon, Dave Legeno, Elarica Gallacher. As Harry Potter begins his sixth year at Hogwarts, he discovers an old. Amazon.com: Harry Potter and the Half-Blood Prince (Widescreen Edition): Daniel Radcliffe, Rupert Grint, Emma Watson, Jim Broadbent, Robbie Coltrane, Michael Gambon. The MuggleNet Daily Quiz is designed to enhance your overall knowledge of the Harry Potter series. Each day there will be 5 questions chosen at random from our test bank. Harry Potter and the Half-Blood Prince (2009) cast and crew credits, including actors, actresses, directors, writers and more. for more HD trailers Director: David Yates Writer: Steve Kloves Cast: Daniel Radcliffe, Rupert Grint, Emma Watson, Helena Bonham.