The collection appears to be growing. First we had Glancy (1992) on 'MGM Film Grosses 1924–1948', followed by Jewell (1994) on 'RKO Film Grosses 1929–1951'. Glancy has now treated us to the details and analysis of a third set of costs and financial information concerning the market performance of films emanating from Warners' studios (including First National traded films between 1929–30 to 1938–39) during the classical Hollywood era. Perhaps we shall soon have a full hand from which to play! The growth in our knowledge in this aspect of film performance is part of a wider and expanding body of work on film as a business: the significance of which is suggested by Jarvie: "Once it was social historians and now it is economic historians who are altering received views".