Sienna Miller | Entertainment News, Photos, and Videos

Sienna Miller shows her toothy grin as she exits the stage door of the Theatre Royal on Saturday (May 14) in London, England.

The 29-year-old British beauty is currently performing in the hit West End play, Flare Path, written by Terence Rattigan. The show will end its successful run on June 11.

Sienna kept it casual as she left the theatre in a gray t-shirt, jeans, and white sneakers.

Earlier this week, Sienna was seen leaving the same stage door as she prepared to sign autographs for awaiting fans.

Sienna Miller swiftly exits the stage door after performing in Flare Path at the Theatre Royal on Monday (May 9) in London, England.

The 29-year-old British actress wore a red plaid shirt and gray sweats as she stepped out to sign autographs for fans. She also hung out with a mystery male while waiting for their car.

Sienna is currently starring in the play Flare Path, which is directed by Broadway and West End veteran Trevor Nunn. She has a few more shows before production ends June 11!

15+ pictures inside of Sienna exiting Theatre Royal…More Here! »

Sienna Miller grins wide as she exits the stage door of the Royal Theatre in London, England on Friday (May 6).

The 29-year-old British actress is currently performing in the hit play, Flare Path by Terence Rattigan, directed by Broadway and West End big shot Trevor Nunn.

Sienna has been performing with the show since March, and it was recently announced that the show will close on June 11th, after a very successful run.

The blond beauty was caught leaving the theatre last week, and signed autographs for fans afterwards!

Sienna Miller exits through the stage door after her performance in Flare Path at the Theatre Royal in London, England on Monday (May 2).

The 29-year-old British actress was wearing a pair of acid wash jeans and an off the shoulder white shirt while she signed autographs for the play’s patrons.

Sienna was spotted last week leaving the same London theatre after her performance, again armed with a sharpie ready to sign programs. Sienna rocked jeans from her own clothing line, twenty8twelve.

Sienna Miller leaves the Theatre Royal Haymarket after performing in her play, Flare Path, on Tuesday (April 26) in London, England.

The 29-year-old British actress was one of a handful of celebs who joined Earth Day Network’s Billion Acts of Green Campaign, which encourages people to do their part in helping the environment.

Since her pledge last year, Sienna has visited India as an ambassador for Global Cool to help raise awareness about the damaging effects of global warming.

FYI: Sienna is wearing Twenty8Twelve jeans.

10+ pictures inside of Sienna Miller leaving her Flare Path performance…
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Sienna Miller leaves the Theatre Royal Haymarket after performing in Flare Path on Tuesday (April 19) in London, England.

Later in the evening, the 29-year-old British actress headed to Japanese restaurant Sake No Hana to meet up with fellow actor Tom Sturridge.

Late last month, Sienna and Tom were spotted grabbing coffee and spending time together at The Dorchester Hotel.

Sienna was recently offered £100,000 from the U.K. tabloid News of the World after the paper apologized for hacking into her voicemails back in 2008.

U.K.’s Telegraph also reports that Sienna‘s emails were accessed without her permission.

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Keira Knightley strikes a pose outside London’s Comedy Theatre after another performance in the play The Children’s Hour on Monday night (April 18).

Fellow British actress Sienna Miller was also seen leaving London’s Theatre Royal Haymarket after another great performance in Terence Rattigan‘s play Flare Path.

You can pick up tickets to see Keira and Sienna hit the stage in their plays over at Ticketmaster.co.uk!

Keira has recently getting cozy with James Righton, the keyboardist from the British indie rock band, Klaxons!