Imagine having waited six years for someone to make a film adaptation of your favourite book. Now imagine yourself sitting in a theatre eagerly anticipating what you believe deserves to be the cinematic equivalent of Star Wars. But almost from the outset you realize it’s not going to be Star Wars, it’s actually Space Balls. Except it isn’t meant to be a parody, it’s meant to be a dramatic interpretation of your book. Welcome to my world last night, when, for the first time in my life, I seriously considered walking out of a theatre.