This is a detailed look at the relationship between Hollywood, Canada and the UK. It has a lot of very interesting detail particularly about UK film acts and the imposition of Ad Valorem duty.The problem is that it is very dryly written, and some of the book,particularly involving the machinations of the MPAA are rather dull and a chore to get through.I am assuming that the author went to the National Archives at Kew.If so he might have a note in Ranks file that in 1949 Rank wanted to buy the RKO theatres from Howard Hughes but the Treasury blocked the transaction. What a missed opportunity.