Harry Potter and the Goblet of Fire (film) being presented to Dan Radcliffe on set of "Order of the Phoenix" at Leavesden Film Studios in April 2006. In the United States, the first five Harry Potter films were released on HD DVD and Blu-ray disc on 11 December 2007. The fourth film has since become available in numerous box sets containing the other films released in the series, including the "Harry Potter: Complete 8-Film Collection" and "Harry Potter Wizard's Collection". An Ultimate Edition of "Goblet of Fire" was released on 19 October 2010, featuring behind-the-scenes footage, trailers, additional scenes, and a feature-length special "Creating the World of Harry
Harry Potter and the Chamber of Secrets (film) based on his own improvised line, "Don't worry. I will be." University of Cambridge linguistics professor Francis Nolan was hired to construct the Parseltongue language for the scenes where Harry Potter was talking to snakes. Principal photography wrapped in the summer of 2002, while the film spent until early October in post-production. In a change of cinematography from the first instalment, director Chris Columbus opted to handheld cameras for "Chamber of Secrets" to allow more freedom in movement. Due to the events that take place in "Harry Potter and the Chamber of Secrets", the film's sound effects were much more