The star of Pablo Larraín's biopic of Princess Diana introduces the film at its Headline Gala at the 2021 BFI London Film Festival, in association with American Express. https://bfi.org.uk/lff #LFF Subscribe: http://bit.ly/subscribetotheBFI Claim an extended BFI Player Subscription free trial (UK only) - subscribe using code BFIYOUTUBE: http://theb.fi/player-subscription Watch more on BFI Player: http://player.bfi.org.uk/ Like us on Facebook: https://www.facebook.com/BritishFilmInstitute Follow us on Instagram: https://www.instagram.com/britishfilminstitute/ Follow us on Twitter: https://twitter.com/BFI