The first day on set [of Rogue One], I always remember - at least my first day on set - you turn up and there’s like a hundred of stormtroopers all running around… and that’s so trippy. You just feel like a six-year-old. ‘So, okay, this is kinda weird. I wanna get some head space’. So, you go over to the coffee table, you go over the crafts services. But there’s hundreds of stormtroopers trying to drink coffee, which is even weirder.