Sorry, she's no star

When I wrote about "Australia's" critical and commercial prospects on my blog the other day, I said, somewhat flippantly, that the movie "once again proves that Nicole Kidman is many things, but not a movie star." Twentieth Century Fox, in fact, has been selling the film largely as a Baz Luhrmann extravaganza, not as a Kidman-Hugh Jackman picture. I've been getting a lot of flak from readers, especially loyal Australians, who have been posting comments defending Kidman's movie stardom and, well, basically saying that I'm an idiot.

Fair enough. But who's right? Is she a star or isn't she? First, let's define our terms. In the movie business, being a star isn't about being a recognizable celebrity. If that were true, Paris Hilton and Lindsay Lohan would be getting $15 million a picture. Being a star is not about being a great actress, either, or Kate Winslet and Cate Blanchett would be getting $15 million a picture. (For the record, Kidman has given many fine performances, going all the way back to "To Die For." She can be a formidable presence on screen.) Being a movie star is about a very simple equation: Do people pay money on opening weekend to see you in a movie? Movie marketers want actors whose presence in a picture makes rank and file moviegoers say: "Oh, my God, I want to see that movie."

By that standard, Kidman doesn't fill the bill. ("Australia" placed fifth, with $20 million, over its holiday opening.) In fact, there are shockingly few female stars of any stature who fulfill that equation. I called a couple of movie marketers to ask if I was being unfair to Kidman. Their answer: No. As one marketer cannily noted, "If someone moves a Will Smith film onto one of your [release] dates, you panic. If someone moves a Nicole Kidman movie onto your date, you shrug. She's just not a real commercial force." Or as another marketer put it: "She's an actress, not a movie star. There's a big difference."

You can check out her track record at the-numbers.com, one of the more reliable box-office websites. It reveals that Kidman has had several distinct chapters in her career, but only one relatively brief period where you could say she was a genuine star.

Period 1

The Tom Cruise Era. In the early to mid-1990s, she was an intriguing new screen luminary, but her only big hits -- "Days of Thunder" and "Batman Forever" -- were summer action movies carried by Cruise or "Batman's" Val Kilmer, Jim Carrey and company.

Period 2