Of all the job titles in the screen credits, 'producer' is the most amorphous, partly because these people are uniquely involved in several aspects of a movie project at once, partly because there are so many different kinds: businesswomen and businessmen producers, writer, director, film star producers & executive producers.
I.b. Tauris & Co. Ltd. Producing. behind the silver screen: a modern history of filmmaking, paperback/***
