Sienna Miller

Sienna Miller teamed up with Naomi Watts at the inaugural Up2Us benefit gala in NYC yesterday. The look-alike stars posed together on the red carpet for the charity, which aims to stop violence through youth sports programs. Erin Heatherton also attended the event, which took place at the Tribeca Rooftop. It's been a busy week for Sienna, who has been staying in the city with her fiancé, Tom Sturridge, after his play Orphans closed on Broadway last month. She joined Tom at the Theater World Awards in the Big Apple on Monday and she'll host a screening of her new film, Just Like a Woman, at the Crosby Street Hotel today. Sienna's new project is slated to hit theaters on July 5.

Sienna Miller and Tom Sturridge didn't let the 90-degree temperatures stop them from taking a walk around the West Village neighborhood in NYC on Saturday. The pair have made their strolls somewhat of a routine after holding hands for a similar couple's outing on Friday. Although Tom and Sienna's daughter, Marlowe, didn't accompany them on their most recent walk, Sienna and her dad, Edwin, spent a sunny afternoon with the little one at an NYC playground last week. Sienna and Tom are reportedly part of a house swap with their pals Channing Tatum and Jenna Dewan, who are currently living in Sienna's London home. The London residence was the site of a happy occasion recently since Channing and Jenna had their first child in the UK on Thursday.

May was a busy time for snap-happy social stars, with the 2013 Met Gala kicking off the beginning of the month and Memorial Day launching the unofficial start of Summer — and bikini selfie season. Aaron Paul got married in California, while Kristen Stewart, Cameron Diaz, Sienna Miller, Gisele Bündchen, and many more shared a behind-the-scenes look at the Met Gala. Justin Bieber reignited romance rumors with Selena Gomez when he posted a picture of them snuggling in his hotel room, while Drake announced his cameo in the upcoming Anchorman: The Legend Continues by sharing a photo of himself in costume with Judd Apatow. Meanwhile, stars like Rihanna, Bar Refaeli, and Lea Michele showed skin on their social networks while vacationing and modeling Summer clothes.

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Sienna Miller donned a white sun dress to take on the heat wave in NYC hand in hand with her fiancé Tom Sturridge today. She spent another warm Summer afternoon in NYC splitting time between her loved ones yesterday. She was accompanied by her father, Edwin, and his wife to take her daughter, Marlowe, to a playground and also got in a bit more one-on-one time with Tom. The couple were recently able to sneak in a date night at the Outer Critics Circle Awards, where Tom took home the honor for outstanding featured actor in a play for his role in Orphans, which recently wrapped its stint on Broadway. Tom's not the only one in the family to be recognized for his work lately. Earlier this month, Sienna made a trip back to London to attend the 2013 BAFTA TV Awards. She didn't take home an honor, but was nominated for the leading actress award for her role in The Girl.

Sienna Miller was on hand to support her fiancé, Tom Sturridge, as he took home an Outer Critics Circle Award in NYC last night. Tom was honored with the outstanding featured actor in a play award for his role in Orphans, which recently closed on Broadway. Sienna wasn't the only celebrity that showed support for the theater community — Lucy Liu dropped by the event and Catherine Zeta-Jones donned a red Hervé Léger dress to present an award in her first public appearance since completing treatment for bipolar disorder. Catherine's husband, Michael Douglas, wasn't with her at the Big Apple bash since he's currently busy promoting Behind the Candelabra across the pond. Michael was joined by his costar Matt Damon at the Cannes Film Festival earlier this week, and he made a quick trip to London yesterday to tape an interview for a star-studded episode of The Graham Norton Show. Michael was joined by Bradley Cooper, Will Smith, Selena Gomez, and Jaden Smith for the interview, which will air in the UK today.

Michael and Matt's highly anticipated TV film will air on Sunday on HBO — find out everything you need to know about Behind the Candelabra before you catch it on the small screen.

Sienna Miller knows how to start (and own) a trend — boho chic, anyone? — but her latest turn toward a more feminine fit-and-flare silhouette is something she has actually loved for years. While Miller's long-sleeved, light blue Matthew Williamson box-pleat dress may be the most recent example of her penchant for the girlier style, she has also stepped out in Topshop, Valentino, and Twenty8Twelve iterations. And it's not hard to see why she loves a fit-and-flare dress — and why, if you haven't converted yet, it's a really flattering choice for most body types. By cinching the smallest part of your waist and letting the skirt flare out over the hips, it creates an illusion of a bombshell-like figure. And for those of you who aren't after a totally body-con fit, this route touches on something halfway to formfitting. All the proof you need, according to Sienna Miller, is right here.

Sienna Miller donned a Matthew Williamson dress and joined her sister, Savannah Miller, to attend the 2013 BAFTA TV Awards in London yesterday. She was nominated for the leading actress award for her role in The Girl but ultimately lost out to actress Sheridan Smith, who won for her role in Mrs Biggs. Sienna has had a busy week, which started with her attending the 2013 Met Gala last Monday alongside Tom Sturridge and friends Cara Delevingne and Kristen Stewart. Sienna and Cara raised some eyebrows when the model posted a photo of herself kissing Sienna at the Met Gala on Instagram. However, Sienna insisted at the BAFTA TV Awards that the kiss was innocent. She said, "I did not snog Cara! She is like my little sister. In fact she kissed me."

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