Eleven Missing Days
Plot
When crime writer Agatha Christie (Jones) goes missing, members of her family and household fall under suspicion. The investigation falls to a retired Belgian detective (Cassel) who happens to resemble Christie's famed character Hercule Poirot .
Production
The film was announced in May 2026, with Fortitude International shopping the project to buyers at the Cannes market .
In June, Oliver Trevena was cast as Agatha Christie's brother. Further cast were unveiled later on June 8, with filming commencing later that week. Haywards Heath was touted as a potential filming location, with London also included.
Filming wrapped in July.
References
↑ "Films" . Fortitude International . Retrieved 14 June 2026 .
↑ Wiseman, Andreas (June 19, 2026). " 'The Handmaid's Tale' Star O.T. Fagbenle Joins Agatha Christie Film 'Eleven Missing Days' " . Deadline Hollywood . Retrieved June 20, 2026 .
1 2 Ritman, Alex (June 1, 2026). " 'Plane' and 'The Bricklayer' Actor Oliver Trevena Joins Felicity Jones and Vincent Cassel in Agatha Christie Mystery-Thriller 'Eleven Missing Days' (EXCLUSIVE)" . Variety . Retrieved June 9, 2026 .
1 2 "Ryan McParland, Alfie Allen, Ben Hardy & Stacy Martin Join Vincent Cassel & Felicity Jones In Agatha Christie Pic 'Eleven Missing Days' " . Deadline Hollywood . 8 June 2026. Retrieved June 9, 2026 .
↑ "Vincent Cassel & Felicity Jones To Star In 'Eleven Missing Days' About The Hunt For Agatha Christie After Her Mysterious Disappearance — Fortitude Launching For Cannes Market" . Deadline Hollywood . 11 May 2026. Retrieved June 9, 2026 .
↑ "EastEnders and Game of Thrones favourites join starry cast of new Agatha Christie disappearance drama" . Radio Times . 9 June 2026. Retrieved June 13, 2026 .
↑ "Casting agency seeks extras for 1920s film in Haywards Heath" . The Argus . 21 May 2026. Retrieved June 13, 2026 .
↑ "Something is coming ⛑️👀🙏🏻🎥✨🎬 #ElevenMissingDays" . Instagram . Retrieved 14 June 2026 .
↑ " 'I like watching the puddles gather rain' 🌧️ #englishsummertime #filming" . Instagram . Retrieved 14 June 2026 .
↑ "That's a wrap on Eleven Missing Days. @vincentcassel my brother, one of the best actors in the world, a great friend, and an incredible human being. I love you. Our utterly stellar director @bertie.ellwood thank you for allowing us to keep taking risks with the work. You're a star. To all the fine actors on this film, all of whom I've been a massive fan of for a long time, @alfieeallen @benhardy @_stacymartin it was a great pleasure to work alongside you all. @steveannisdop our DOP, knows how much I love him and his work. From our first film Kissing Candice 10 years ago to now, this guy is a genie in a lens bottle. And of course the talented @rosewicksteedcasting and her awesome team for putting together an insane cast - I salute you. Two films back to back. 🩵" . Instagram .
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