Sienna Miller Tom Surridge New York engaged Marlowe

Sienna Miller and Tom Sturridge certainly are two hipster peas in a pod!

The couple were spotted arm in arm in New York City on Monday afternoon, and they left their adorable 8-month-old daughter Marlowe behind while they went for a walk. We're guessing the 31-year-old actress and her 27-year-old fiance didn't coordinate their looks, but it is kinda amusing that they're both wearing oversize sweaters/jackets and bright red lips!

Tom's Broadway play, Orphans, opens on April 18, and Sienna is currently shooting Foxcatcher, which follows the story of John du Pont, a paranoid schizophrenic man who killed Olympic wrestler David Schultz. Mark Ruffalo plays Schultz, Channing Tatum plays his brother, Sienna is the wife Nancy, and Steve Carell plays du Pont. Odd casting choice, but it makes us even more curious about the movie!