Emma Stone wore a floor-length halter Giambattista Valli Haute Couture dress on 2012 Oscars Red Carpet held at the Hollywood & Highland Center in Hollywood. She completed the stunning look with Brian Atwood heels and Louis Vuitton bag and jewels.

The 23-year-old actress provided some of the most memorable comedic highlights of the night when she and Ben Stiller co-presented the Oscar for visual effects.

“This is my first time presenting,” a gleaming Stone said to which Stiller snidely responded, “Yeah, I know.” Stiller then started to read the list of nominees, and Stone stopped him, saying, “Wait, wait, let’s stop rushing. We should have some banter. Where you act cocky and I shut you down and you say I look pretty and I say ‘no chance funny boy’!”

Refusing to heed to the beautiful redhead, Stiller gave this warning to his co-presenter: “You don’t want to be the presenter who tries too hard.”

Stone wittingly replied, “What do you mean, like a guys who would dress in full Avatar makeup or something? I’m surprised you’re not in a Planet of the Apes outfit.”  yep, in case you were wondering, Stiller dressed head-to-toe as an Avatar Na’vi two years ago to present the best makeup Oscar and even at one point spoke to director James Cameron in Na’vi language and making Na’vi sex jokes.