Heffes, Alex (Autor Personal)

Dear Frankie, 2005: container insert (Alex Heffes)

IMDb, Mar. 13, 2008 (Alex Heffes; composer)

Internet Movie Database, March 15, 2017 (Alex Heffes; born September 2, 1971, Beaconsfield, Buckinghamshire, England; composer)

Touching the void, 2004: créditos (Music by Alex Heffes)