When studios get to the end of a profitable franchise, they start to panic. Creative properties must be milked to the last penny so they are stretched to breaking point. Harry Potter and the Deathly Hallows became two movies. The Hobbit – a 300-page book has been converted into three movies that run for nearly eight hours. And now, Mockingjay, the last installment in Suzanne Collins best-selling Hunger Games trilogy, comes to us in two parts. Part 1 is just the placeholder.