January 2022 movie “Operation Mincemeat” starring Colin Firth.
https://www.imdb.com/title/tt1879016/?ref_=nm_flmg_act_4
The cast also includes Johnny Flynn (who will play a young Lieutenant Commander Ian Fleming), Penelope Wilton (who plays Mrs. Hughes in Downton Abbey) and Ellie Haddington (who played Hilda Pierce in Foyle's War).