Actor and philanthropist Ben Stiller posing for a photo with Chelsea dealer Tony Shafrazi during the 2010 Art Basel Miami Beach fair. Photo: Patrick McMullan Company.

Gallerist David Zwirner, former president Bill Clinton and actor Ben Stiller announced today that they will co-chair a gala in September to benefit the Stiller Foundation, which is working to rebuild schools in Haiti that were damaged in the 2010 earthquake there.

The dinner will take place on Sept. 23, at the Skylight Soho event space in far west Soho. The day before, Christie's will host a benefit auction, called Artists for Haiti, which will include works by Louise Bourgeois, Chuck Close (who has painted a portrait of Mr. Clinton), Urs Fischer, Jeff Koons, Cindy Sherman, Marlene Dumas and Jasper Johns (who received a Presidential Medal of Freedom from the current U.S. president earlier this year), among others.

Ben Stiller has been popping up at art events with some regularity over the past year, alighting, for instance, in Miami during the 2010 Art Basel Miami Beach, where he dined alongside Whitney director Adam Weinberg and Marc Newson manager Stuart Parr at a dinner hosted by super dealer Larry Gagosian, Wendi Murdoch and collector Dasha Zhukova.

Details for some of the works in the charity auction are available here. Charity bidders will be competing for some impressive works, including one of Dan Flavin's iconic 1967 "monument" for V. Tatlin light sculptures and a new painting by Luc Tuymans that measures more than seven feet tall.

The Observer hopes that art critic Jerry Saltz will attend, since it would give him the opportunity to update his Facebook photo, which has long shown him posing next to Mr. Clinton.