Sorry I’m Late
There are even a lot of stop motion videos, this is one of the best I ever saw. Sorry I'm Late by Tomas Mankovsky is shot with a stills camera in the ceiling pointing straight at the floor. There's tons of 'making of' stuff at the website sorry-im-late.com.
Picking fishes for the underwater scene.
Trevor upstairs preparing for some perspective tricks. They needed plenty of light in order for it to work.
Via Design You Trust