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After donning several unpredictable but fashion-forward outfits at the Venice Film Festival last month, Keira Knightley is clearly continuing her chic streak at the London Film Festival.

The actress, 26, suited up in a black and white calf-length Roksanda Ilincic dress with a criss-cross bodice at the premiere for A Dangerous Method in London.

But this ensemble is a tricky one -- not only is the sexiness of the shoulder and midriff-baring top offset by the long skirt, but it also looks like a completely different dress from the back. The eye catching colorblock look from the front turns into head-to-toe black once Knightley whirls around.

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Keira Knightley's Black and White Dress: Love It or Hate It?

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Keira Knightley's Black and White Dress: Love It or Hate It?