Fool Moon, the acclaimed evening of New Vaudeville clowning that has brought Bill Irwin, David Shiner and the Red Clay Ramblers to Broadway twice before, will open at San Francisco's American Conservatory Theatre Sept. 9 for a run through Oct. 4, before returning this fall to Broadway for a holiday engagement Nov. 17 to Jan. 3, 1999, most likely at the Brooks Atkinson Theatre.

The show, which opens the ACT season, previewed Sept. 3-5 & 8. For information, call (415) 749-2228.

Broadway production spokesperson Jackie Green said the production will be substantially similar to the 1993 and 1995 incarnations: a series of sketches and stunts "featuring two grandmasters of physical lunacy in an evening of sly humor, chaos and music." In the show, Irwin plays his sweetly mischievous persona off Shiner's more astringent one. Some of their routines incorporate music by the Red Clay Ramblers, who also perform solo during the show.

Irwin, recipient of a MacArthur Foundation "genius" Grant, developed his silent clown persona in The Regard of Flight and Largely New York. He directed and starred in an Off-Broadway production of Moliere's Scapin for Roundabout Theatre Company, co-starred in Waiting for Godot at Lincoln Center, and recently directed A Flea in Her Ear, also for Roundabout.

Fool Moon debuted on Broadway Feb. 25, 1993 for 207 performances, and returned for a limited 80-show holiday engagement Oct. 29, 1995.