Catch Tonya Pinkins in 'A Raisin in the Sun,' David Strathairn as a Holocaust witness, Alan Cumming dancing and more Think Broadway's busy in September? Wait until you read about all the promising productions opening beyond Broadway this month. We've rounded up a baker's dozen of intriguing offerings, including Tonya Pinkins in a revival of A Raisin in the Sun directed by Robert O'Hara, a dance-theatre collaboration …
