Halle, 46, said her Oscar gown came about at the last minute.
"I had a conversation with Donatella Versace and told her that I really want to go to the Oscars as a Bond Girl, if a Bond Girl would go in 2013. So she came up with her idea of what it was, but she’s out of the country.
"She put it in a suitcase and shipped it here, and I got it the day before the Oscars," she continued. "I had some other dress I was going to wear which was beautiful. But I pulled this out and it fit perfectly, and I just thought, 'Wow.'"
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The Tonight Show with Jay Leno airs weeknights at 10:35/11:35 on NBC.