Sienna Miller Stuns in Balenciaga and Harry Winston at American Sniper NYC Premiere

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In December 2014, Sienna Miller hit the red carpet for the premiere of her latest film, American Sniper, held at Lincoln Center in New York City. She was joined by co-stars Bradley Cooper and Cory Hardrict and director Clint Eastwood.

Sienna Miller dazzles in sparkling Harry Winston jewelry at the American Sniper premiere in New York CitySienna Miller dazzles in sparkling Harry Winston jewelry at the American Sniper premiere in New York City (Credit: WENN)

Sienna Miller’s Preparation for the Role

Portraying American author Taya Renae Kyle, the widow of US Navy SEAL Chris Kyle, she spent time with Chris Kyle’s widow to prepare for the role.

“I felt like I understood her,” Miller told People Magazine. “We Skyped and she told me stories about how they met and their marriage and the good and the bad. We would laugh and cry. When the time came to meet, I felt like we were really good friends already.”

She also read all the emails that the couple exchanged while Navy SEAL sniper Christopher Scott Kyle was in Iraq.

“I felt really wrong doing it. She gave us her blessing, so I knew it wasn’t morally wrong. They were so personal and sweet and never written with the intention of being read by anyone other than each other. I felt really uncomfortable, but I knew at the same time it was informative. Bradley and I had these points of reference and this shared experience to that personal world,” Miller told Variety in an interview.

Bradley Cooper as Chris Kyle and Sienna Miller as Taya Kyle on the set of American Sniper in Northridge, a neighborhood in the City of Los Angeles, on May 22, 2014 (Credit: WENN)

Filming for American Sniper took place in Morocco and California, with principal photography beginning on March 31, 2014, when Sienna Miller was 32 years old.

Sienna Miller films a wedding scene on the set of American Sniper in a strapless bridal gownSienna Miller films a wedding scene on the set of American Sniper in a strapless bridal gown on a yacht in Marina Del Rey, California, on May 30, 2014 (Credit: WENN)

Red Carpet Fashion: Sienna Miller’s Look at the New York Premiere

For the movie’s premiere in New York, the then-32-year-old American-born British actress donned an ivory dress from the Balenciaga Spring 2015 collection featuring mini diamond-fringed appliques, sheer sleeves, and a crossover satin ivory bodice.

Sienna Miller joins Clint Eastwood and Bradley Cooper on the red carpet at the American Sniper premiere in New York CitySienna Miller joins Clint Eastwood and Bradley Cooper on the red carpet at the American Sniper premiere in New York City on December 15, 2014 (Credit: WENN)

The G.I. Joe: The Rise of Cobra actress accessorized with Harry Winston jewelry and completed the outfit with matching white Balenciaga ankle-strap sandals.

Do you find Sienna’s dress sexy or tacky? We like it, but Sienna should have chosen a different pair of shoes for this dress.

Sienna Miller stuns in an ivory Balenciaga dress with sheer sleeves and diamond-fringed appliques at the American Sniper premiere in New York CitySienna Miller stuns in an ivory Balenciaga dress with sheer sleeves and diamond-fringed appliques at the American Sniper premiere in New York City (Credit: WENN)

You can find the latest shoe arrivals from Balenciaga at Mytheresa and Nordstrom.

Sienna Miller showcases her perfectly pedicured toes in chic white Balenciaga ankle-strap sandalsSienna Miller showcases her perfectly pedicured toes in chic white Balenciaga ankle-strap sandals (Credit: WENN)