Diana Miller is an English actress born on December 28, 1981. She started her career as a photography model, appearing in the pages of Italian Vogue and for the 2003 Pirelli calendar. She was born in New York City and reared in London. Her breakout roles as an actor were in Layer Cake and Alfie in 2004. In the following years, she played the socialite Edie Sedgwick in Factory Girl (2006) and the writer Caitlin Macnamara in The Edge of Love (2008), earning nominations for the 2008 BAFTA Rising Star Awards. Following her performance as The Baroness in G.I. Joe: The Rise of Cobra (2009), she took a lengthy break from acting due to heightened media scrutiny.
Miller gained notoriety again when she played actress Tippi Hedren in the 2012 television movie The Girl, for which she received nominations for both the Golden Globe and the BAFTA Television Awards for Best Actress in a Miniseries or Television Film. With appearances in the movies Foxcatcher (2014), American Sniper (2014), Mississippi Grind (2015), The Lost City of Z (2016), and Live by Night (2016). American Woman (2018), as well as the miniseries The Loudest Voice, further critical praise followed throughout the 2010s (2019).
Sienna Miller was born in New York City, and when she was 18 months old, her family relocated to London. Later, she boarded at Ascot, Berkshire’s Heathfield School, an all-girls institution.  Her mother, Josephine, is a former model from Britain who British parents raised in South Africa. She was David Bowie’s assistant and had served as manager of the Lee Strasberg Theatre and Film Institute in New York City.
Early acting credits, 2001–2003
In South Kensington (2001), a romantic comedy starring Rupert Everett and Elle Macpherson, Miller made his acting debut. She appeared in guest parts in The American Embassy and Bedtime in 2002, as well as supporting roles in High Speed and its sequel, The Ride. In the drama television series Keen Eddie, she regularly played the feisty yet loving flatmate of an NYPD detective (2003). Miller’s first introduction to American audiences, despite FOX canceling it after only seven episodes.
Breakthrough and tabloid notoriety, 2004–2008
2004 was a turning point in Sienna Miller career, with parts in two commercial films and a heightened public presence because of her relationship with actor Jude Law. She played the love interest of a cocaine supplier in London in the criminal thriller Layer Cake, directed by Matthew Vaughn and starring Daniel Craig. Miller was dubbed “a new It Girl who hardly registers on-screen despite wearing little more than lacey filaments that make her look like a gift meant to be unwrapped very swiftly” by The New York Times.  She portrayed the girlfriend of a cockney limo driver and drug addict in Bill Naughton’s 1966 movie Alfie (Jude Law) remake. She stated at the time: “I’m not particularly delighted about my new It Girl status.
In the historical comedy Casanova, Miller played a writer of unlicensed feminist publications and Giacomo Casanova’s (Heath Ledger) love interest (2005). It grossed a respectable US$37.6 million, and Entertainment Weekly gave it a favorable review, saying of Ms. Miller’s Francesca: “Her Francesca is neither too tough to melt nor too sparkling from the Emma Thompson school of smarties.”  She also made her West End début in 2005 at the Wyndhams Theatre in a rendition of As You Like It, where she got mixed reviews. She approaches an emotion with the finesse of someone beating a carpet, according to Paul Taylor of The Independent, and she “brings to it all the mature professional stage experience that can be garnered from.”
Screen hiatus, 2009–2011
Miller’s first and only mainstream Hollywood movie, G.I. Joe: The Rise of Cobra (2009), a live-action adaption of the G.I. Joe franchise, starred Miller as The Baroness. Since it did not involve “having a breakdown, [being] addicted to heroin, or dying at the end, something that was just maybe fantastic fun and that people went to see and truly just had a great time witnessing,” she decided to try out. She slipped on a rubber bullet while filming a fight scene with Rachel Nichols, breaking her wrist. Most critics did not like G.I. Joe, but it brought in US$302.5 million worldwide.
\ Miller experienced a “career resurrection” following a period of professional mediocrity, according to journalists. In some critically praised films, she had more complicated, tragic roles.  In an interview, she stated that “all the directors speak to one another.” “And once you join that elite group of outstanding directors, you’ll have supporters. individuals that others listen to. I’ve never experienced that before “.
Miller portrays Tippi Hedren, the inspiration for director Alfred Hitchcock, in the HBO and BBC drama The Girl (2012). While filming, Miller, who was still very early in her pregnancy, chatted with Hedren several times for her research, and the two of them grew close.  The attic sequence from Hitchcock’s The Birds was recreated using live birds. Miller admitted to experiencing a bird assault for two hours to the Radio Times. Although that was awful, it was nothing compared to what [Hedren] went through. Off-camera, I saw men throwing seagulls and pigeons in my face out of bird boxes.   Despite the film’s mixed reception, Jane Simon of the Daily Mirror wrote: “[G]liding gracefully through it all (and with an
Miller had a previous role as a photography model before becoming a professional actor. She signed with Tandy Anderson of Select Model Management London and went on to work as a model for Coca-Cola, Italian Vogue, and the 2003 Pirelli Calendar, among other publications.  She later appeared on the covers of international fashion publications like Nylon, Marie Claire, and Porter Edit, in addition to the American, British, Australian, and Portuguese editions of Vogue. 
Miller agreed to a two-year contract with the Madrid-based Pepe Jeans London denim brand. The first advertising campaign, created by stylist Karl Templer and photographer Mikael Jansson, debuted in magazines in March 2006.  She was named the new brand ambassador for Hugo Boss Fragrances’ BOSS Orange women’s perfume in February 2009.  She made her announcement as the
Miller established a full-fledged fashion company in 2007 with the help of her sister Savannah, a seasoned fashion designer. Its name, Twenty8Twelve, comes from Miller’s birthdate and is financially supported by Pepe Jeans.  The sisters ran the label until 2012, when they stated they would no longer serve as co-creative directors. [6