Sienna Miller: Ralph Lauren Wimbledon Party!

Sienna Miller flashes a smile at the Ralph Lauren Wimbledon Party on Tuesday (June 21) in London, England.

The 29-year-old British actress attended the bash, which was held at the Ralph Lauren store in Brompton Road, with her older sis Savannah.

Earlier this month, Sienna and her new beau, Tom Sturridge, enjoyed a night out with his On the Road co-star, Kristen Stewart.

Sienna and Tom also traveled to Paris to watch the men’s final during the French Open.

FYI: Sienna is wearing Ralph Lauren.