Originally heralded as a long-shot risk from Marvel Studios, Guardians Of The Galaxy has now become a huge hit in its own right, breaking August box office records and making thousands of kids reconsider what they believe to be their favourite film. Talking to the writer-director behind it all, James Gunn, we find out more about how it was made, and in our hour-long discussion afterwards, get into the nitty-gritty of what makes the weird and wonderful space comedy-opera work...