What music to use for the film?
I think Badly Drawn Boy (Damon Gough) would be the perfect choice for composer. His work on films such as About A Boy, The Fattest Man in Britain, and Being Flynn showcase his talent for music and lyrics. He has a sensitivity and style that would completely match James and Bob's story - in fact whenever I read the book, I can BDB's music in my head.
Lots of his music can be found on YouTube, but two of my favourite examples are
Is There Nothing We Could Do from The Fattest Man in Britain
https://www.youtube.com/watch?v=kRWz-_2EbY4
A minor incident from About A Boy https://www.youtube.com/watch?v=hTqOBWftdSA