'Argylle' trivia and fun facts

Taylor Swift's theory

There's a theory that says the real writer of the 'Argylle' novels is Taylor Swift and Ellie Conway is her alias.

Henry Cavill is allergic to cats.

Alfie the Cat is played by Chip, owned by Matthew Vaughn's wife Claudia Schiffer.

There is an end credits scene that happened 20 years earlier.

The cast features two Oscar winners - Sam Rockwell and Ariana DeBose - and two Oscar nominees - Samuel L. Jackson and Bryan Cranston.