There is nothing worse than showing up a at party to see another guest wearing your dress. And if you have ever attended a formal affair, where floor grazing styles are "de rigueur" ("requested"), you know the odds are against you making a completely unique fashion statement at the event (unless you are Rihanna).

At the recent Academy Of Motion Pictures And Sciences Governors Awards Gala on November 16, actresses Abbie Cornish (in Christian Dior) and Amy Smart both donned similar halter styles gowns in jewel tone shades of amethyst and jade, but each stood out in their look.

Photos: Jason LaVeris/FilmMagic