Ever watch a movie and think to yourself, "That woman looks familiar, but I can't quite put my finger on it..." Well, it's probably Sienna Miller. She's a chameleon.
  1. Burnt
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    Shaved the bottom half of head for that half-ponytail look. Appropriately, took me half the movie to realize it was her.
  2. American Sniper
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    This is actually a photo of Michelle Monaghan.
  3. Just kidding!
    It's Sienna. But I totally fooled you. You were like: 🤔
  4. Alfie, figure 1
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    Bangs, contouring, and a very smokey eye. So mysterious. So Gisele Bundchen/Heidi Klum/Bo Derek/any 70s-era babe.
  5. Alfie, figure 2
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    Did Alexa Chung dye her hair blonde??
  6. Foxcatcher
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    I haven't seen this movie, so I've ruined the surprise for myself of realizing it's her. (I'm too scared to see it??? ...) But I'm getting a hint of Tea Leoni with a dash of Emma Thompson.
  7. Casanova
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    I can't decide if she looks more like Vivien Leigh (Gone With The Wind) or Elizabeth Taylor here.
  8. G.I. Joe: The Rise of Cobra
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    Could easily pass as Alyssa Milano, Katherine Heigl, or any Party of Five cast member.
  9. Factory Girl
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    Kiernan Shipka in 10 years.
  10. Stardust
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    I watched this movie about 5 times before realizing it was her. (This is maybe my fav movie of all time. Top 3, at the least.)
  11. The Girl
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    Uncanny.
  12. Did you even know that she was in these movies?? I know. It's crazy.