The best known trivia fact about 1995’s Judge Dredd is that Arnold Schwarzenegger turned down the role, refusing to act in a film which required him to wear a face-concealing mask for its duration. Sylvester Stallone, however, wasn’t bothered by this fact and took the part as the crypto-fascist cop, protecting the streets of a post-apocalyptic America. Nearly two decades later, it turns out Karl Urban wasn’t perturbed by the mask-factor either. But then, he didn’t have much choice…

On the eve of Dredd 3D’s Midnight Madness premiere at TIFF, we sat down with the film’s writer, Alex Garland (28 Days Later, Never Let Me Go) to chat about the reboot. When asked if he ever had to have the “helmet stays on” conversation with Urban, Garland laughed, saying the Dredd helmet actually came with “a legal creative requirement.” Continuing, he revealed: “In the contract—from the guys who licensed the film to us—it said: ‘Dredd cannot take off his helmet.’” However, he also noted that he and Urban were “absolutely on the same wavelength.” As Garland explained: “If you’d grown up reading Dredd [as Urban had] you’d never really consider taking the helmet off, it wouldn’t make sense…it would be like Batman going on TV and announcing his entire back-story to Gotham City!”