A Boy And His Atom earned the Guinness World Records record for the "World's Smallest Stop-Motion Film." (See how it was created here).
What you see on screen are individual carbon monoxide molecules moving around. The film was zoomed in 100 million times. The actual plot of the film is about a boy who bounces his atom around and watches it morph into different forms such as clouds and the word "THINK," which has been IBM's slogan since 1911.
YouTube description:
The ability to move single atoms — the smallest particles of any element in the universe — is crucial to IBM's research in the field of atomic memory. But even nanophysicists need to have a little fun. In that spirit, IBM researchers used a scanning tunneling microscope to move thousands of carbon monoxide molecules (two atoms stacked on top of each other), all in pursuit of making a movie so small it can be seen only when you magnify it 100 million times. A movie made with atoms. Learn more about atomic memory, data storage and big data at http://www.ibm.com/madewithatoms.