(THEATER) Last week, when I reviewed Intiman's adaptation of the novel to which, before its arrival, in 1940, all black American novels were directed, and from which, after its arrival, all black American novels have departed, Native Son, I failed to mention its impressive stage design. The set is alive with movement: a bed, a globe, a car, and many other props glide on and off the elaborate stage, which is framed by a towering reproduction of a slum building. The more I think about this play, the more I'm impressed by it. (Intiman Theatre, 201 Mercer St, 269-1900. 7:30 pm, $42.)