Performances — which still begin May 15 and play through June 2 at The Public's Shiva Theater — will now have a 6:30 PM curtain. Michele Chivu directs. For a full schedule, visit the LAB website.

Ciannavei will appear in a cast that also includes Bronwen Coleman, Cusi Cram, Salvatore Inzerillo, Trevor Long and Sidney Williams.

"What's the difference between an overweight marketing executive who sells women's lingerie and diet pills and the starving spokesmodel who peddles the goods for the camera?" asks the show announcement. "About 100 pounds."

Playwright Ciannavei also penned Art Outside, co-wrote Gypsy: Wanted for UnAmerican Activities (with Laura Somers) and short plays that include Employees Must Wash Hands, The Squeeze, Twelve Never Changes, Murasaki and The Deep End. As an actor, her credits include Slipped Disc, Savage in Limbo, "100 Centre Street," "The Sopranos," and the film "Pigeonholed."

Director Chivu previously collaborated with Ciannavei on Employees Must Wash Hands, The Squeeze and the Barn reading of Pretty Chin Up. Other credits include We.Belliwood, Feeder: A Love Story, Blume in Atlantic City, The Maids and Rhinoceros. The troupe's 15th anniversary season will continue with Eric Bogosian's This Is Now! penned with musician-composer Elliott Sharp. No dates have yet been set.

Tickets are available for Pretty Chin Up at the Public Theater, 425 Lafayette Street, by calling (212) 967-7555. For more information visit labtheater.org.