Phil: I never had one single individual who acted as a mentor; it was more of a collective. The years spent working for movie productions, on the sets of major films, seeing first-hand how the likes of Tim Burton, Terry Gilliam, George Lucas, Chris Columbus, Michael Apted did their thing was a huge learning experience for me. I was fortunate to closely shadow Chris Columbus on the first two Harry Potter films, was with him on-set, in the rushes theatre watching dailies, in the production office, in editing, and accompanied him to all departments during principal photography and this priceless level of access – not to mention having the chance to bend his ear and get his take on filmmaking and writing and having him read my early work – allowed me to fully understand the filmmaking and script development processes.

I’ll never forget the best piece of advice he gave me. At the time, I was poring over paradigms and screenwriting formulae, and when I asked him about the validity of these, he turned to me and said: “Just write an entertaining story.” It was his way of telling me not to rely on these overworked plot structures, but focus on telling a story that entertains. If you can do this honestly, then you’re on the right track.