John Murphy is a British film composer from Liverpool. He began composing music scores for films in the early 1990s, working on several successful British movies, enjoying particular success with the soundtracks to Lock, Stock and Two Smoking Barrels (1998) and Snatch (2000). Since 2000, Murphy has been based in Los Angeles. From here, he has worked with some of the industry's most respected and luminary filmmakers, including Danny Boyle, Stephen Frears and Michael Mann, and produced several prominent and diverse successes, including 28 Days Later, Miami Vice, Sunshine and 28 Weeks Later.