The King's Man is a 2021 spy action film directed by Matthew Vaughn from his story and a screenplay he wrote with Karl Gajdusek.

Its ensemble cast includes Ralph Fiennes (also one of its executive producers), Gemma Arterton, Rhys Ifans, Matthew Goode, Tom Hollander, Harris Dickinson, Daniel Brühl, Djimon Hounsou, and Charles Dance.

A sniper attack on the camp mortally wounds Emily but, before dying, makes Orlando promise never to let their son see war again.

Twelve years later, Orlando has formed a private spy network with his servants, butler Shola and maid Polly Wilkins, employed by the world's most powerful dignitaries.

Conrad is eager to fight, but Orlando forbids him to join the British Army and persuades Secretary of State for War Lord Kitchener not to let him do so.

Princip later reencounters the Archduke's entourage by chance and fatally shoots him and his wife, starting World War I. Orlando learns that the assassination was orchestrated by "The Flock": a group plotting to pit the German, Russian, and British empires against each other, led by the mysterious "Shepherd", whose ultimate goal is Scottish independence; his operatives include Russian mystic Grigori Rasputin, trusted adviser to Tsar Nicholas of Russia.

Word of Kitchener's death reaches Orlando, spurring him to travel to Russia with Shola, Polly, and Conrad to kill Rasputin.

Although British Intelligence intercepts the message, Polly deciphers it, but American President Woodrow Wilson refuses to join the war, citing a lack of concrete proof.

The Shepherd recruits Vladimir Lenin to overthrow the Tsar and remove Russia from the war, sending an assassin to execute the Romanov family.

Determined to fight in the war, Conrad swaps places with Scottish soldier Archie Reid, giving him the nickname "Lancelot" to send his father a message.

Disguised as Archie, a member of the Black Watch, Conrad volunteers for a mission into no man's land to retrieve information from a wounded British agent.

After Wilson again refuses to enter the war despite Conrad's proof, Orlando learns that the President is being blackmailed with footage of being seduced by Shepherd's agent, Mata Hari, and resolves to recover the negatives.

In a mid-credit scene, Hanussen, having assumed command of Shepherd's organisation, introduces Lenin to the Romanovs' assassin, Adolf Hitler.

[15] In February 2019, it was reported that Aaron Taylor-Johnson, Gemma Arterton, Tom Hollander, Djimon Hounsou, Alison Steadman, Stanley Tucci, Robert Aramayo and Neil Jackson had joined the cast.

[24] In April 2019, some scenes were shot in Piedmont, Italy: Turin, Po river's street, street of city and in two palaces close to it; Venaria Reale: the Palace of Venaria and royal gardens; Nichelino, Palazzina di caccia of Stupinigi and surroundings; Racconigi (Cuneo), Castle of Racconigi.

The site's critical consensus reads, "Ralph Fiennes' solid central performance in The King's Man is done dirty by this tonally confused prequel's descent into action thriller tedium.

[70] In October 2023, Vaughn announced a direct sequel, The King's Man: The Traitor King, to be in active development, following the fictionalised rise of Adolf Hitler (portrayed by David Kross) across the franchise's alternate history setting, with Ralph Fiennes, Aaron Taylor-Johnson, Gemma Arterton, and Djimon Hounsou intended to reprise their roles.