Who: Charlize Theron

Where: The world premiere of Prometheus in London.

What: A Dior Haute Couture midnight blue bustier dress and black Dior shoes.

Why: After a slew of blood red and darkly gothic get-ups while promoting Snow White and the Huntsman, Theron seamlessly switched gears for the sci-fi Prometheus. The shimmering blue embroidery is subtly intergalactic, while the classic silhouette and sheer hemline keep it seductively feminine.

Photo: Getty Images

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