Da Vinci and the Code He Lived By (2005)

Documentary. A truly respectable study of the decades of contributions made by da Vinci, setting his life in historical context and pegging it on the "code" of excellence that a driven genius chooses to live by. They claim he may have been a greater engineer of warfare than a painter. (He did not like the younger Michelangelo and lost his military contracts when his political patrons got their butts kicked in war.) 4 stars.