Harry Gregson-Williams' film music is inspired by contemporary electronics and classic movie romance. The Hollywood composer learned at the feet of Hans Zimmer, whose mix of percussive themes and swooning strings is audible in Gregson-Williams' work for films such as Déjà Vu and The Equalizer. But he's leaving his mark with innovations of his own, as with the uncanny blend of ambient electronic music and choral drama in his score for The Martian, or the mix of digital beats and country strings in Cowboys & Aliens. Get to know some of the most memorable cues from scores in this composer's growing oeuvre.