"It's great that for my stage debut I'm such a long way from anything I've done until now," Rupert Grint says.
"I've been offered stage things before and I always hesitated: I thought I wasn't ready. I didn't know Jez's play at all so it was a big leap of faith - but that also goes for Ian Rickson (the director). But we've had the luxury of 19 previews to get it right and it's been an amazing experience."
Speaking of the differing dynamic between stage and film, and the intensity of being in front of a live audience for two and a half hours each night, Rupert says:
"Well that's what the rehearsals do for you. It's more intense and deeper than in the cinema. In film you dip in and out, with big distractions in between: you don't go into much detail. Theatre is exhausting in a way film-making usually isn't. But it's also really rewarding."