harrymcc writes "IBM's Almaden Research Center has a scanning tunneling microscope, a device invented by the company. It uses it to move individual atoms around — mostly for storage research. But it's created a 242-frame cartoon, A Boy and His Atom, using individual atoms as pixels. Guinness has certified it as the world's smallest movie."
242 frames, and ten 18-hour days of work by multiple people using a very tiny copper needle attached to an expensive machine to move the atoms around.