Schwarzenegger made the discovery after approaching the film’s producer Mark Canton and asking for details about the fitness regimen Butler adopted to look like a beefy warrior.
The impressed Terminator star wanted to track down the Scot’s trainer and hire him to get him back into blockbuster shape, following his two terms as California Governor – and was shocked to discover Butler’s look was all movie magic.
He tells Entertainment Weekly magazine, “I said to Mark Canton, ‘You have got to get a hold of this guy (Butler). I want to know what his training regimen is.’
“Canton said, ‘What are you talking about? (That look) cost me a lot of money.'”