Mangrove is set to open the BFI London Film Festival (LFF) later this year.The film, which stars Black Panther‘s Letitia Wright, will tell the story of the Mangrove Nine – a group of Black activists who clashed with London police in 1970 during a protest march, which led to a highly publicised trial.Mangrove forms part of McQueen’s Small Axe anthology series, and will premiere at New York Film Festival before having its European premiere at LFF, later airing on BBC One and Amazon Prime Video