It’s early 2023 and, in a film studio in west London, the production crew on Back to Black are attempting to recreate a pivotal moment in the career of Amy Winehouse: the singer’s chaotic appearance on the Pyramid Stage at the 2008 Glastonbury Festival. She’s riding high from the long-tail success of her second album, 2006’s Back to Black, but up there on the main stage, she’s wobbly and wobbling, slugging booze as she shouts to the audience about her fella, Blake, currently incarcerated at Her Majesty’s Pleasure.