Originality is much ballyhooed, but few artists have had it in spades like the tragically short-lived Gordon Matta-Clark (1943-1978), who transformed entire buildings into sculptural fantasias though formally strategic cuts in their structures. Rare films of the artist at work highlight this exhibition, which also presents photographs, drawings, a pad sliced with Constructivist-style semicircles and a cast of a medieval sculpture’s hands. Among the locations glimpsed are New York (including its sewers), Paris (including its skeleton-packed catacombs), Antwerp and Kassel.