Hailee Steinfeld in Mary Katrantzou | London Show Rooms LA Initiative Cocktail Party

Hailee Steinfeld was among the celebrity attendees tonight at the British Fashion Council London Show Rooms initiative cocktail party which was held at SkyBar at the Mondrian Los Angeles. Hailee donned a striking floral contrast sleeveless dress by Mary Katrantzou from the designer’s recently debuted Spring/Sumer 2012 collection.

The “Romeo and Juliet” actress looked as pretty as ever in the dress which she paired with patent platform pumps and styled her super long brunette locks in a high ponytail.

How cute would a pair of strappy aqua, purple or orange sandals have been?

Photos: Zimbio, Style.com