After fifty years is “Zen for Film” an experience, an object, a projection, or a relic? Holling examines the early history of the work, contemporaneous artworks that raised similar questions, and protocols for institutions that would borrow and exhibit examples from various public collections. Some of Holling’s questions are now being answered by the artist’s estate, museums, and film archives–and they offer inconsistent answers. “Zen for Film,” whose subject is entirely bound with its materiality, raises particularly complex questions, and Holling is thoughtful, dogged, and modest in searching for answers. Her examination raises points common to enough 20th- and 21st-century works that art historians concerned with the record as well as curators and conservators tasked with exhibiting and caring for them will have to acknowledge them.