Guy Lodge Film Critic Who does a documentary truly belong to — the people who make it, the people who fund it, or the people it depicts? On the face of it, the answer seems obvious: At a spiritual level, if not always a corporate one, we tend to think of art as the property of the artist. Yet in dusting off a long-languishing nonfiction feature from the 1970s that was taken from its stymied director by his bankrollers and sent to the vault, Andrés Peyrot’s thoughtful, mirror-holding doc “God is a Woman” makes a compelling case for the third option.