When I first started going to movies in the late 1940s customers rarely saw just one film. In the suburban houses, especially, there would be the main feature plus a supporting attraction. The theatres would sometimes try to book contrasting types of films so that viewing one would enhance the other. I recall an afternoon at the Arcadia Chatswood in 1952 watching Richard Fleischer’s taut thriller The Narrow Margin followed by David Lean’s The Sound Barrier. Most of the action in the first movie took place on a train as Charles McGraw’s cop tried to protect Marie Windsor’s witness from…