"We're sort of riding on their wave of success in a way," Staunton said of the show's crew, including the production designers, costume and make-up departments. "I mean, I was doing a scene yesterday and I cannot tell you the detail that went into giving me breakfast, it was absolutely extraordinary. And [in] every department, no one's going, 'Oh that's fine. They won't see it.' No one does that. It's absolutely got to be to the nth degree correct. And that's one part and then, of course, (showrunner) Peter Morgan investigates the emotional part - that's another area. But costume, make-up - it's all just the top drawer and also we want to live up to that and serve it well."