Incase you hadn’t noticed, there’s a new Transformers movie out this weekend. Age of Extinction goes down the semi-reboot route for its fourth instalment, casting Michael Bay favourite Mark Wahlberg as loving father and mechanic Cade Yeager. So were Wahlberg and Dinobots always in the frame? Can a fifth film offer something bigger and more explosive than prehistoric robots? We sat down with two of the producers to find out.