'Dark Knight Rises': Marion Cotillard on Playing Miranda Tate (Video)

Marion Cotillard makes her debut as Miranda Tate in The Dark Knight Rises, the third and final installment of Christopher Nolan's epic Batman saga.

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Describing Miranda as a "good guy," Cotillard says she's "a socialite and she has a lot of money and she wants to use this money to do good things for her city. And she's kind of fascinated by Bruce Wayne. She wants to help him to get back into the world and she wants to do things with him."

If that sounds crpytic, well, Cotillard can't say too much. (Neither can this reporter, who's seen the film, and won't spoil anything at this time for all you Batman fans out there.)

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The Dark Knight Rises, which had its red-carpet premiere Monday in New York City, will certainly bust open the box office when it opens in theaters Friday. Christian Bale reprises his role as the titular Dark Knight, while Tom Hardy terrorizes as Bane and Anne Hathaway puts her own slinky spin on feline anti-heroine Catwoman.

But it was Cotillard, who starred in Nolan's 2010 mind-bender Inception, who held a special power to halt production on the movie until she was available. The director delayed filming until after the Oscar-winning actress gave birth to her first child, Marcel, with actor-director Guillaume Canet, in May 2011.

"I was so happy when he asked me to be part of the experience, and at the same time, I was a little sad because I couldn't make it," she says. "And so we had this conversation on the phone and he told me, 'well, I'm in the middle of the writing and I'm gonna try to make it work.' Of course, I feel so lucky that he wanted to work with me again and that he could do this for me."

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As for joining the elite group of Nolan's actor muses (see also: Bale, Joseph Gordon-Levitt), Cotillard adds: "He's so creative. He's a real artist. ... I would love to work with him again. It's very easy to work with him because he gives you everything you need."