Issue 39 of the monthly magazine podcast for the discerning film nerd concludes with the Big Conversation, in which the Adamsons tackle a topic from the film world in more detail. This month it's how casting affects a film and how different some of your favourite films would have been if the original choice had been cast. Sometimes it's a fascinating Sliding Doors moment; or it just proves what James (no, the other one) says, that often filmmakers are lucky they didn't get what they wanted. The first two parts of Issue 39 are already available to download.