Even by La La Land standards, it has been an extremely swift rise. So when we meet a few hours prior to the screening, it does not come as a surprise that he admits to being out of his depth from the off. With zero film, zero television and only some drama school stage work under his belt, he had no idea what to expect from the audition process for Lee’s ‘anti-war, pro-soldier’ project. An adaptation of Ben Fountain’s bestseller, the film tells the story of a 19-year-old Texan marine and reluctant hero of a firefight in Iraq who, with his platoon, is paraded as part of the half-time entertainment at a 2004 Thanksgiving American football game. ‘Even after they asked to see me in New York, I didn’t realise the gravity of it, or the opportunity,’ he says, scratching his head. ‘I didn’t think it was necessarily going to happen — it was just an adventure to go over there and meet Ang.’