The last chance to catch monologuist Spalding Gray in his "rework in progress" of Swimming to Cambodia is Dec. 31 at San Francisco's American Conservatory Theatre. Performances of the piece that made Gray famous began Dec. 26 in the Geary Theatre.

In Swimming to Cambodia, Gray recounts his experiences on the film "The Killing Fields," from his audition to shooting in Thailand. While some of his material centers on the forbidden excesses of Bangkok (a "banana show," strippers and the like), he also talks about the subject of the Academy Award winning film — the murder of millions of Cambodians by the Khmer Rouge.

Gray won an OBIE for Swimming to Cambodia and filmed the monologue with Jonathan Demme. Other works include Morning, Noon and Night, Monster in a Box, Gray's Anatomy and It's a Slippery Slope. He last performed another writer's work on Broadway — Gore Vidal's The Best Man.

Before moving to San Francisco, Gray revived the piece Nov. 14-Dec. 12 at the Wooster Group's Performing Garage. Gray co-founded the Group.

For ticket information, call (415) 749 2250. American Conservatory Theatre is located at 415 Geary Street. American Conservatory Theatre is on the web at http://www.act-sfbay.org. — By Christine Ehren