A rare chance to see this 1971 musical on the big screen. Polly Browne (Twiggy) is an understudy in a seaside revival of a 1920s show. She finds herself unexpectedly promoted to the lead, and then a Hollywood producer comes calling. The legendary model's screen debut came about because director Ken Russell, struggling with his incendiary film The Devils, was looking for a light-hearted follow-up. He joked with a journalist that he was going to cast Twiggy in Sandy Wilson's 1950s frolic 'The Boy Friend'. Then MGM, which owned the rights, persuaded him to do it for real. The result is sparky, good-humoured and packed with classic songs.

Screening as part of BFI Musicals! The Greatest Show on Screen, a UK-wide film season supported by National Lottery, BFI Film Audience Network and ICO. bfimusicals.co.uk