GUYS AND MOLLS: A flash of leg. The bitter taste of gin. The smell of corruption. The sweetness of revenge.

Chicago in the roaring '20s? Nope, the premiere of "Chicago" starring Catherine Zeta-Jones, Richard Gere and Renee Zellweger, at the Academy Theatre in Beverly Hills on Tuesday night. "Chicago," opening Dec. 27, is the long-awaited celluloid version of Bob Fosse's award-winning Broadway musical about passion, rivalry, murder and betrayal.

So, natch, every TV crew, from "Access Hollywood" to "Entertainment Tonight," asked the film's stars to sing the classic songs from the film. Some, but not all, obliged, such as Christine Baranski, Mya, Denise Faye and Anastacia, who sings the title song. "I'm from Chicago, and I just can't believe my luck," said the sexy blond pop singer. "If the song gets nominated, I get to sing at the Oscars!"

Baranski plays a TV journalist and says she based her character on Barbara Walters: "You know, how she's so nice and sympathetic, then goes in for the kill."

"Chicago"s' murderous plot resonates today. Showgirls Velma Kelly (Zeta-Jones) and Roxie Hart (Zellweger) kill their cheating men and are defended by a headline-hungry lawyer (Gere). Sounds like the Robert Blake and O.J. Simpson trials.

"We're not planning an O.J. musical, but Richard Gere could have won that case," said "Chicago" producer Seymour Cassel.

At the after-party: Jennifer Tilly, Juliette Mills, Oliver Martinez, Mena Suvari, Linda Gray, Janet Leigh, Stephanie Powers, Martin Short and the happy cast, including Queen Latifah, Taye Diggs, John C. Reilly, Gere (with wife Carrie Lowell) and Zellweger, sporting a '20s bob sure to spark a holiday hair trend.

Zeta-Jones, with husband Michael Douglas, looked elegant in a low-cut Valentino gown that disguised her pregnancy. No tight belly-baring styles for this classy gal. The secret to her happy marriage? "Be nice to your partner. We are always so much nicer to strangers and other people. It's important to be nice to your husband."

Good advice. We think the dress helps, too.