Sienna Miller has posted exactly once on Instagram, back in 2017, but somehow she still amassed more than 873,000 followers. Such is the public’s fascination with everything this English-American actress does, says, and wears. In the 2012 film The Girl, she captured the appeal of Tippi Hedren; in Ben Affleck’s period drama Live by Night (2016), she played a gangster’s mistress; and now the decidedly downtown New Yorker appears as the privileged wife of a badly behaving politician in the new Netflix drama Anatomy of a Scandal. Here, Miller shares her key components to the good life. —Ashley Baker

Airline: The Singapore Airlines suite was about as decadent as it’s been. Certainly the last time I actually didn’t want to get off the plane.
Airport
: They have good Tex-Mex in Houston.
Alibi
: “I was with Tori!”
App
: Shazam.
Bedtime: Well, Hemingway once said, “We would be together and have our books and at night be warm in bed together, with the windows open and the stars bright.” That sounds pretty perfect to me.
Bike: Steve McQueen’s from The Great Escape.
Boyfriend/girlfriend: Is there such a thing?
Breakfast, weekday: A six-minute egg and Marmite or Bovril soldiers. Americans, feel free to google.
Breakfast, weekend: Some extremely strong coffee, grapefruit juice, and steamed eggs with prosciutto and Parmesan at Buvette, in New York.
Car: A 250 GT California Spyder.
Child
: Marlowe Ottoline Layng Sturridge.
Cocktail: A very, very dirty martini.
Cocktail appetizer: I’ve always been partial to a cocktail sausage.
Couple: Serge Gainsbourg and Jane Birkin.