Editing London Symphony Orchestra (section)

===Film===
{{Main article|London Symphony Orchestra filmography}}
Even in the era of silent films the LSO was associated with the cinema. During the 1920s the orchestra played scores arranged and conducted by [[Eugene Aynsley Goossens|Eugene Goossens]] to accompany screenings of ''The Three Musketeers'' (1922), ''The Nibelungs'' (1924), ''The Constant Nymph'' (1927) and ''The Life of Beethoven'' (1929).<ref name=m277/>

Since 1935 the LSO has recorded the musical scores of more than 200 films.<ref name=m277>Morrison, pp. 277–283</ref> The orchestra owed its engagement for its first soundtrack sessions to [[Muir Mathieson]], musical director of Korda Studios. On the LSO's website, the film specialist Robert Rider calls Mathieson "the most important single figure in the early history of British film music, who enlisted [[Arthur Bliss|Bliss]] to write a score for ''Things to Come'', and who was subsequently responsible for bringing the most eminent British 20th-century composers to work for cinema."<ref name=film/> Mathieson described the LSO as "the perfect film orchestra". Among the composers commissioned by Mathieson for LSO soundtracks were [[Ralph Vaughan Williams|Vaughan Williams]], [[William Walton|Walton]], [[Benjamin Britten|Britten]] and [[Malcolm Arnold]] and lighter composers including [[Eric Coates]] and [[Noël Coward]].<ref>Morrison, pp. 277–279</ref>

As a pinnacle of Mathieson's collaboration with the LSO, Rider cites the 1946 film ''Instruments of the Orchestra'', a film record of the LSO at work. Sargent conducted the orchestra in a performance of Britten's ''[[The Young Person's Guide to the Orchestra]]'', composed for the film. Rider adds, "Mathieson's documentary, with its close-ups of the musicians and their instruments, beautifully captures the vibrancy and texture of the Orchestra amidst the optimism of the post-Second World War era."<ref name=film/>

Another milestone in the LSO's history in film music was in 1977 with the recording of [[John Williams]]'s score for the first of the ''[[Star Wars]]'' films. Rider comments that this film and its sequels "attracted a new group of admirers and consolidated the period of film music activity for the Orchestra, which continues unabated to this day".<ref name=film/> The LSO also recorded other Williams film scores, including ''[[Superman (1978 film)|Superman: The Movie]]'' (1978) and ''[[Raiders of the Lost Ark]]'' (1981) and six of the eight films from the [[Harry Potter]] film series.<ref name=m280>Morrison, p. 280</ref>