Actors in the new film 'Harry Potter and the Goblet of Fire' Left to right, Stanislav Ianevski who plays Victor Krum, Clemence Poesy who plays Fleur Dalacour, Rupert Grint who plays Ron, Emma Watson who plays Hermione, Daniel Radcliffe who plays Harry Potter, Katie Leung who plays Cho Chang and Robert Pattinson who plays Cedric Diggory, at a photocall in London, Tuesday Oct. 25, 2005. The film is to be released on Nov. 18, 2005 and is the fourth in the series of Harry Potter films based on the books by author J.K.Rowling.