Two Oscar®-buzz Premieres on the Same Night

It's Halle vs. Natalie. Both stars are getting major Oscar® buzz, and both held premieres on the very same night.

In New York, Natalie Portman went glam in a black off-the-shoulder gown and bold red lipstick, for the premiere of Black Swan in which she plays a troubled ballerina.

She also shares a steamy on-screen kiss with a rival ballerina played by Mila Kunis.

Portman said, "It's part of the film, you know, I think it's a crucial part of the story."

Natalie dropped 20 pounds to get that ballerina look. She did it by working out five hours a day and eating a 1,200 calorie a day diet.

Across the USA in Los Angeles, Halle Berry walked the red carpet in a gold and black '70's style suit for the premiere of Frankie & Alice, which takes place in the 1970's.

She plays a woman afflicted with multiple personality disorder. One of her alter egos is a stripper, another is actually a racist white woman.

She talked to INSIDE EDITION about all that Oscar® buzz, saying, "You know there's a lot of pressure that comes with that big "O" word, but if it gets people interested in seeing the movie, I'm happy about that."