Sienna Miller, 42, Nails Date Night In A Puff-Sleeve Blouse And Leather Pants Alongside Her 27-Year-Old Boyfriend

Sienna Miller rocked another stylish date night ensemble while stepping out with her boyfriend, Oli Green , in London this week for an exclusive screening of Dune: Part Two . The Horizon: An American Saga star and style icon , 42, sported a chic puff-sleeve sweater adorned with a geometric pattern and paired it with sleek black leather pants.

Photos obtained by The Daily Mail show the Anatomy of a Scandal actress accessorizing her outfit with a black belt cinching her slender waist, black open-toed sandal heels, and a gray handbag. Meanwhile, Green, 27, looked sharp in a black cord zip sweatshirt layered over a white polo shirt, complemented by tailored trousers and polished shoes. This appearance follows a series of fashionable couple moments from Miller and Green in recent months.

Sienna Miller Rocks Another Chic Fall Date Night Outfit In London With Boyfriend Oli Green

Miller and Green were first romantically linked in late 2021. The two share one daughter whose name is yet to be revealed to the public, born in December 2023.

The Alfie alum is also mom to daughter Marlowe , 11, whom she shares with her ex Tom Sturridge.

This outing from Miller and Green comes after their stylish Wimbledon appearance back in July (above) .

Miller stepped out in a cream-colored, polka-dot, long-sleeved crop top paired with a coordinating pleated midi skirt.

The boho queen's look was flawlessly completed with matching Prada accessories. Green donned a crisp gray suit.

Another memorable fashion moment from Miller came last month. The American Sniper actress pulled off a spectacular boho-inspired look when she attended Chloé’s Spring/Summer 2025 show on September 26th during Paris Fashion Week.

Dressed head-to-toe in Chloé's Spring/Summer 2025 collection, the blonde beauty wore some high-waisted light pink flared trousers, teamed with a cropped puff-sleeve blouse in the most stunning pastel blue shade.

Miller also wore a pair of clog wedges from the new collection and some oversized sunglasses.

The mom of two 's jewelry also came from the new collection, and consisted of a pearl necklace, a choker, and stone cuffs and bangles.

As always, fans can't wait to see what fall look (and date night style inspo) she sports next.