Break-Up Rumors, Is Sienna Miller Single Again?

Is the 43-year-old actress officially back on the market?

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Are celebrities more likely to divorce or break up? Earlier this week news reports surfaced that Sienna Miller, 43, and her partner had split up. Is the actress best known for her roles in G.I. Joe: The Rise of Cobra, Factory Girl or Layer Cake really single again?

UPDATE 27/07/2025 : This story seems to be false. (read more)

Miller spotted alone

A fan spotted Sienna Miller walking alone, probably coming back from picking up her mail at the end of her several mile long driveway, on the afternoon of July 25, 2025. Was she all alone? “Definitely yes,” says the fan, adding that “She was wearing a large sweater and looked really cute!”

Is Sienna back on the market?

A rep for Sienna Miller was not immediately available for comment.

Truth or rumor, when news that the actress - known for having been romantically involved with James Franco, Jude Law or Balthazar Getty - was splitting hit the internet Saturday (July 26), Twitter immediately exploded with pithy commentary. It seems everyone had an opinion on the matter:

“Has anyone Sienna’s phone number?”
— Mike Whedon (@mikywhedon) July 26, 2025

“Hate to see Miller split up, but I thought the pairing was a little weird.”
— AaronJ (@aaronjj) July 26, 2025

Based on the facts (Miller spotted alone with a cute sweater), is there trouble in paradise or is it much ado about nothing?

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