Animated films first became popular in the 1930s and have since spawned an entire category of movie collectibles that have proved to be almost as enduring as the cartoons themselves. The most sought-after animation artifacts are animation cels, which is short for celluloid. Cartoons were hand-drawn or painted, frame-by-frame, on these colorful transparent sheets. Put enough of them together and you had an animated movie. Collecting...Continue Reading