The astounding early silhouette animations of Lotte Reiniger

German film director Lotte Reiniger (1899-1981) was a pioneer of silhouette animation, a form of stop motion animation created with cardboard cutouts moved frame-by-frame. Her glorious 1926 film above, "The Adventures of Prince Achmed," is thought to be the oldest surviving feature-length animations. Below is The Met's short documentary about Reiniger's process.

(Thanks, Bob Pescovitz!)