Though David Leitch’s Bullet Train is a stylistic, heightened action thriller, for actor Brian Tyree Henry, who plays Lemon, there was a commitment to authenticity he wanted to honour. The character is from the East End of London, and is the brother of Aaron Taylor-Johnson’s Tangerine. When speaking to Yahoo, alongside his on-screen sibling, Henry said he used his co-star as a guide when it came to perfecting the tricky cockney accent. Bullet Train is in cinemas nationwide from 3 August.