Richard Ayoade - who found fame as a computer geek in The IT Crowd - has directed his first film, Submarine, based on a novel by Joe Dunthorne. They join Francine Stock to discuss the comedy of adolescence and the influence of French director Eric Rohmer.

Neil Brand is behind the piano to deconstruct the recurring hook in film scores from Taxi Driver to True Grit.

Filmmaker Richard Jobson assesses The Singer Not the Song, starring Dirk Bogarde as a Mexican bandit in this 1961 curio.

Ken Loach talks about his latest - Route Irish - a Liverpudlian thriller exploring the consequences suffered by private contractors in Iraq.