Before making his debut as a composer with Attack the Block, he worked on the music department for various notable films, such as The Lord of the Rings: The Two Towers, The Lord of the Rings: The Return of the King, Batman Begins, and Scott Pilgrim vs. the World.
Sebelum mengawali kariernya di Attack the Block, ia bekerja di departemen musik sejumlah film ternama seperti The Lord of the Rings: The Two Towers, The Lord of the Rings: The Return of the King, Batman Begins, atau Scott Pilgrim vs. the World.