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 - Search for movie plot, trailers, cast and crew, photos, reviews, and tickets online at Moviefone 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. Harry Potter and the Half-Blood Prince is the sixth novel in J. K. Rowling's Harry Potter. I have purchased each Harry Potter film on Blu Ray and up until this one was very pleased with both the movies themselves and the hi def renderings and PCM and/or. for more HD trailers Director: David Yates Writer: Steve Kloves Cast: Daniel Radcliffe, Rupert Grint, Emma Watson, Helena Bonham. Harry Potter and the Half-Blood Prince (2009) cast and crew credits, including actors, actresses, directors, writers and more. Ginny: [sees Hedwig and Harry's trunk in the kitchen] Hedwig? [calls upstairs] Mum? Molly Weasley: Ginny? What is it? Ginny: I was only wondering when Harry got here. Cast, crew, and production information for the sixth movie of the Harry Potter series. 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.