John Sedgwick is a Professor in the Business School of Portsmouth University, and Associate Researcher in the Research Institute for History and Culture (OGC) at the University of Utrecht. Before that he worked for 25 years at the Polytechnic of North London/University of North London/Metropolitan University in various teaching and administrative capacities. He researches into the business and economic history of movies. With his long-term collaborator Michael Pokorny he has edited an anthology of papers on the subject, and published articles in Business History, Cinema Journal, Economic History Review, Journal of Economic History, Explorations in Economic History, Historical Journal of Film, Radio and Television, Journal of Applied Statistics, Journal of Cultural Economics, and Journal of Transnational Cinema. As well as having contributed numerous book chapters, John has also published the monograph Popular Filmgoing in 1930s Britain and with Clara Pafort-Overduin and Jaap Boter published an article in the journal Enterprise and Society comparing Dutch and British experience of filmgoing in the 1930s.