Sale alert. Net-a-porter’s U.S sale extravaganza is in full swing. Get 50% off selected items now! My top pick has to be this strapless dress by Zac Posen. I’m absolutely in love with the purple Lanvin creation as worn by Natalie Portman at the Blindness premiere in Cannes. And while this beauty by Posen is hardly reminiscent of Portman’s dress, it is equally as stunning!