This engaging slow burn adventure presents a fresh re-imagining not just of Lancelot and Tristan but of the causes of the tension between fae magic and the Arthurian court.

Lancelot du Lac Sept. 27-Oct. 3, Film Forum in Manhattan, filmforum.org . A version of this article appears in print on , Section C , Page 4 of the New York edition with the headline: Camelot’s ...