As an inventor and special effects innovator, Tim Jenison probably deserves having a documentary made about him just on those criteria alone. But it is his investigation into 17th century painter Johannes Vermeer who was renowned for photographic like realism in his paintings that is of interest in the fascinating and entertaining documentary "Tim's Vermeer" from Penn & Teller.
Due to not wanting contemporaries stealing ideas from him(and probably also to mess with future art historians), Vermeer left behind no notes on his methods. However, certain art historians have theorized that he created his famous paintings with mirrors, or more precisely a camera obscura. That's where Tim Jenison comes into the picture and the documentary by using his engineering expertise to recreate the conditions necessary, first on a copy of a modern photograph of his father-in-law(signed with a black felt tip pen, no less), followed by a reconstruction of one of Vermeer's paintings with a little help from some of the most patient family imaginable.(To be honest, I do suspect there was a little horsetrading involved.)
Not only does all of which not take away from the magic of the paintings, but actually puts us all in awe of the painstaking tasks it took to create such great art. This was at a time when Vermeer had to create all of the geometry of his setup from scratch.