The television theme music swells, the video montage begins, and the audience delivers the predictable swooning response. But the glamorous star onstage is quick to remind us of one important fact.

 “There was life before Dynasty, announces Joan Collins at the start of her one-woman show One Night With Joan at Feinstein’s at the Loews Regency.

Delivering the sort of autobiographical evening that such stars as Gregory Peck and Cary Grant, among others, have performed late in their careers, the still glamorous 77-year-old reveals herself to be an engaging raconteur, delivering the dish if not quite the dirt.

She looks stunning, clad in costumes designed by Nolan Miller that included tight spangly pants with an off-the-shoulder blouse and a gorgeous sequined dress. And just to prove that she’s still limber, she does a split.

“I was born in the second third of the 20thcentury,” she begins, signaling that the evening will be truthful if not quite fully informative. In the course of the following hour or so, she regales us with her life story, including her early days in Hollywood as a young starlet signed to 20th Century Fox; her five marriages (after each husband is discarded, an “X” crosses his face on the video screen); her encounters with such celebs and co-stars as Marilyn Monroe, Bette Deavis, Joan Crawford and Gene Kelly; her erratic film career, which includes such camp classics as Empire of the Ants; her triumphant resurgence with Dyansty; and her high-profile and ultimately triumphant legal battle with Random House.

Convivial without quite losing the haughty demeanor that has marked so many of her screen performances, she also displays a winning self-deprecating humor that gives the evening a fun breeziness.  

Feinsteins at Loews Regency, 540 Park Ave. 212-339-4095. www.Ticketweb.com.