Maynard’s Fine Arts Theatre recently hosted a short run of the documentary “Eva Hesse” by Marcie Begleiter, a work as humane and complex as the sculptor herself. Hesse’s childhood and relationships with other artists, including Sol LeWitt, are touchingly brought into focus. Her enormous creative energy and prescient intellect will be new to many viewers, but it’s Hesse’s work that takes center stage. Haunting, gorgeous, personal, and raw, it has inspired two generations of sculptors since Hesse’s death and will influence many more. An appraisal of her oeuvre that is overdue and welcome, this is a must-see.