Marion's photocall dress is Dior Spring 2012. I assume the premiere dress is Dior too.
http://i.imgur.com/rEH1j.jpg
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The IFP, Calvin Klein Collection & euphoria Calvin Klein Celebrate Women In Film At The 65th Cannes Film Festival - May 17, 2012
Ludivine Sagnier
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Ill-fitting dress galore at the Calvin Klein event Only Du Juan looks lovely And I love the Ben Stiller, Chris Rock and David Swimmer group!
I haven't been impressed with many Cannes looks so far. No one stood out to me.