<P> Along with continuous changes in cinematographers, there have been five film editors to work in post-production on the series: Richard Francis - Bruce edited the first instalment, Peter Honess the second, Steven Weisberg the third, Mick Audsley the fourth, and Mark Day films five through eight . </P> <P> The Harry Potter series has had four composers . John Williams scored the first three films: Philosopher's Stone, Chamber of Secrets, and Prisoner of Azkaban . However, the second entry was adapted and conducted by William Ross due to Williams's conflicting commitments . Williams also created Hedwig's Theme, which is used in every film in the series . </P> <P> After Williams left the series to pursue other projects, Patrick Doyle scored the fourth entry, Goblet of Fire, which was directed by Mike Newell, with whom Doyle had worked previously . In 2006, Nicholas Hooper started work on the score to Order of the Phoenix by reuniting with director David Yates . Hooper also composed the soundtrack to Half - Blood Prince but decided not to return for the final films . </P> <P> In January 2010, Alexandre Desplat was confirmed to compose the score for Harry Potter and the Deathly Hallows--Part 1 . The film's orchestration started in the summer with Conrad Pope, the orchestrator on the first three Harry Potter films, collaborating with Desplat . Pope commented that the music "reminds one of the old days ." Desplat returned to score Harry Potter and the Deathly Hallows--Part 2 in 2011 . </P>

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