National Theatre Live: The Authenticator

Fenella Harford is an eccentric artist who inherits a family estate. Upon finding a collection of concealed diaries, she hires a young scholar named Marva to verify if the documents are genuine. Along with Marva's mentor, Abi, the three women investigate the history of Harford Hall, only to find that the residence hides sinister secrets. This gothic psychological thriller focuses on the search for truth and the discovery of dark family mysteries.

Produced by the National Theatre, this drama was directed by Miranda Cromwell and written by Winsome Pinnock. The two previously worked together on the production Rockets and Blue Lights. The film features a cast including Sylvestra Le Touzel as Fen, Cherrelle Skeete as Marva, and Rakie Ayola as Abi. Additional voice roles are performed by Phoebe Campbell and Nuala McGovern. Released on June 30, 2026, in the United Kingdom, the project was produced by Tracey Low.