Valentino and Giancarlo Giammetti have a unique ability to capture and sustain the attention of a very glittering crowd. So much so that on Tuesday night, Hugh Jackman, Adrien Brody, Brian Grazer, Stephen Daldry, Martha Stewart, Marc Jacobs and Charlie Rose packed into The Standard hotel’s 18th floor for the designer’s umpteenth party celebrating his documentary “The Last Emperor,” which premiered in New York eight months ago and is out now on DVD. Of course, Valentino insisted the affair was just an opportunity “to see lots of friends” (albeit ones who are used to step-and-repeats and events sponsored by Mercedes-Benz, HSBC Bank and Maestro Dobel tequila).

“People believe we are very social, but we are not,” said Giammetti. “We do things when we have to, but otherwise life is a normal life.”

Daphne Guinness agreed: “They’re very private, they’re not social for the sake of being social.”

Nevertheless, said Gloria von Thurn und Taxis, “They have very good social skills.”

Valentino and his crew remained the center of attention until just after 11, when Madonna arrived. After saying hello to her beau Jesus Luz, who was DJing house music, the pop star and Steven Klein swooped into a VIP booth. Then — as happens every time Her Madgesty appears at a fashion event — the men in attendance circled around her and stared reverently, while the women gossiped about her looks. When she hit the dance floor, bumping and grinding with Bravo’s Andy Cohen, everyone followed suit, including Valentino.