Trevor Alfred Charles Jones is a South African composer of film and television scores. Having spent much of his career in the United Kingdom, Jones has worked on numerous well-known and acclaimed films including Excalibur, Runaway Train, The Dark Crystal, Labyrinth, Mississippi Burning, The Last of the Mohicans, and In the Name of the Father; collaborating with filmmakers like John Boorman, Andrei Konchalovsky, Jim Henson, and Michael Mann. He has composed for numerous films and his music has been critically acclaimed for both its depth and emotion, and he has been nominated for two Golden Globe Awards and three BAFTA Awards for Best Film Music.

Excalibur is a 1981 epic medieval fantasy film directed, co-written and produced by John Boorman, that retells the legend of King Arthur and the knights of the Round Table, based loosely on the 15th-century Arthurian romance Le Morte d'Arthur by Thomas Malory. It stars Nigel Terry as Arthur, Nicol Williamson as Merlin, Nicholas Clay as Lancelot, Cherie Lunghi as Guenevere, Helen Mirren as Morgana, Liam Neeson as Gawain, Gabriel Byrne as Uther and Patrick Stewart as Leondegrance. The film is named after the legendary sword of King Arthur that features prominently in Arthurian literature. The film's soundtrack features the music of Richard Wagner and Carl Orff, along with an original score by Trevor Jones.