The movie may be dividing audiences, but ”Moulin Rouge”’s love theme, ”Come What May,” sung by stars Nicole Kidman and Ewan McGregor, is striking a chord with the white-veil set. The duet won elite wedding cachet when Fox chairman Jim Gianopulos and his bride, Ann, chose the bravely warbled ballad for their first dance at their November wedding. (”Rouge” director Baz Luhrmann even mixed a special version for the event.) Since then, three ”Rouge” crew members also borrowed the song for their own nuptials. Luhrmann embraces the song’s matrimonial appeal. ”It’s not surprising because a wedding song, it’s about a commitment forever — it’s a claiming of the relationship. And [the film’s] two characters have to claim the relationship because it’s a secret relationship.” The director waves off any notion that all this wedded bliss may be bad timing for the soon-to-be ex-Mrs. Cruise. ”I think Nicole can’t wait for it to go out as a single.” She won’t have long: The tune will be the next release off the soundtrack.