"He's f***ing amazing," Ayer said. "He's blowing my mind. It's weird, no one's really asked him to act in this manner before. People's minds are going to be blown…no one's going to see this coming."
Finally, in the images below, you'll see a DEA hat that Ayer wears. We're not sure if it's an official DEA logo (which certainly looks like the Expendables tattoo) for the film or if this was made specifically for the film crew. Other images show Arnold taking a break from filming and hittin' the gym! Fantastic!
Arnold tweets: Great to run into Roc Shabazz, @therealroc, in the gym this morning before I headed out to film Ten.