07/02/2010 05:12 am ET Updated May 25, 2011

Gwyneth Paltrow Talks Relationship With Scarlett Johansson

If Gwyneth Paltrow and her Iron Man 2 costar Scarlett Johansson are feuding as some online reports suggest, it's news to the blonde star.

"People tell me, 'Oh you had a fight,' " Paltow tells PEOPLE at a party for Chopard's 150th anniversary at the Frick Collection in New York. "They're pitting you against each other and I just think, 'Why do we need to make a problem between women?' "

"I think that's the part that's lame," she says.

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