http://www.101celebrities.com/natalie-portman/natalie-portman-look-of-the-day/

It’s no surprise that Natalie Portman looked breathtaking at the
Venice Film Festival premiere of her latest film, Black Swan, nor that
she chose to wear Rodarte (designers Laura and Kate Mulleavy did
create the ballet costumes featured in the film, after all). But it’s
safe to say that the glorious crimson gown Natalie donned exceeded all
expectations.