James Marsh's doc Man on Wire, about acrobat Phillipe Petit's daring wire walking act between the WTC Towers in 1974, is currently doing gangbusters business for Magnolia Pictures. It averaged a scintillating $24,000 per screen average in its bow of two screens last weekend. It expands for the next two weeks and, while you wait for it to come to a theater near you, check out this interview with its director and subject.