Some designers love to be a little more unusual in how they approach a theme. Amanda Seyfried's Prada gown, for example, is rendered in the same yellow as the flag of the Vatican City. It's likely that's what Prabal Gurung was going for when he dressed Gabrielle Union in the same colour, complete with a cathedral train (oh yes, cathedral trains were rife, because there's another nod to the church). But at first glance, she just looks like a beautiful woman in a beautiful yellow dress.