Yo-Yo Ma will play his cello. Alice Waters will prepare dinner.Eric Fischl will discuss his art. Meryl Streep will give a reading. A who's who of 14 American cultural stars (which also includesJoel Coen, dancer and producer Damian Woetzel, opera directorPeter Sellars, and others) will descend on Beijing November 16 for the first U.S.-China Forum on the Arts and Culture. But, as the United States prepares to enrich the country with its luminaries from the arts, China is reining in its own cultural offerings by restricting entertainment shows and tightening its grip on microbloggers.