The Courier (2021)

In this true-life spy thriller, an unassuming British businessman Greville Wynne (Benedict Cumberbatch) is recruited into one of the greatest international conflicts in history. At the behest of the UK's MI-6 and a CIA operative (Rachel Brosnahan), he forms a covert, dangerous partnership with Soviet officer Oleg Penkovsky (Merab Ninidze) in an effort to provide crucial intelligence needed to prevent a nuclear confrontation and defuse the Cuban Missile Crisis.