More than 200 art and society heavies, including Dorothy Lichtenstein, Paula Cooper, Tricia Brown, Anne Bass, Dr. Mathilde Krim, Jennifer Bartlett, Louise Burns, Scott Campbell, and Jeannie Steele, flocked to a cocktail party and art sale by 21 contemporary artists toasting the Merce Cunningham Dance Company’s 50th anniversary. The soiree held at Dominique Bourgois’ Westbeth studio raked in $1.1 million.