The actress arrived fashionably late to the London screening on Wednesday night in a sparkling floor-length dress. With a sheer back and a plunge at the front, Atwell wowed in the blue and black design.
Thankfully, she was the only one to embrace sequins on the red carpet. Star of the film Rosamund Pike chose a contrasting little white dress by Victoria Beckham. Cute!
Inspired by Hayley's sparkling style? Here's our pick of the best bejewelled accessories:
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