Though we've been lucky enough to speak to a fair few superstars in our relatively short run here on Soundtracking, this might just be the first time we've welcomed a genuine grandee to the programme.

Michael Apted is a writer, producer and actor who's been involved in film and television for well over 50 years. His credits include everything from British soap opera Coronation Street and the revolutionary documentary series Up to critically acclaimed movies such as Gorillas In The Mist and Enigma. He's also had the honour of directing a Bond film, which is no bad thing to have on one's CV. In recognition to his contribution to cinema, he was elected President of the Directors Guild Of America in 2003.

Michael's latest offering is Unlocked, a supremely entertaining thriller starring Noomi Rapace, Orlando Bloom, Toni Collette, Michael Douglas and John Malkovich. That, I think we can all agree, is some cast. And what with it being a genre piece, it provided the perfect opportunity to explore the particular demands he deemed fit to make of composer Stephen Barton for the score ...