Anamorphosis
The Quays' interest in esoteric illusions finds its perfect realization in this fascinating animated lecture on the art of anamorphosis. This artistic technique, often used in the 16th- and 17th centuries, utilizes a method of visual distortion with which paintings, when viewed from different angles, mischievously revealed hidden symbols.
Starring
Watch "Anamorphosis" on Fandor released in 1993. It's a documentary and animation movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie.