"My wife is an actor," Jackman, 40, tells PEOPLE. "They both get it. But I don't think they want to be on the set watching the monitor."
Still, filming love scenes with Kidman, 41, "couldn't have been better or easier," he says. "We spoke of setting boundaries."
So did Jackman wear anything for the steamy scenes?
"I won't tell all the nitty gritty," he says coyly. "But [director Baz Luhrmann] treats love scenes like choreography. The camera is like a dancer. If you watch any of his movies, visually, the love scenes are like poetry."
No Worries About LoversThe director, meanwhile, says he was thrilled with the chemistry between his two stars.
"It's not something you can rehearse," Luhrmann said on his way into New York's Museum of Modern Art, where he was being honored last week at a party hosted by Men's Vogue and Louis Vuitton.
"I had a lot of things to worry about – equine flu, and it rained for the first time in the desert in 100 years! But the moment I saw them as lovers, I knew I had nothing to worry about in that department."
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