Last Updated: 3/11/2017
A113 is a recurring media easter egg created by alumni of the California Institute of the Arts. The number refers to the classroom used by the graphic design and character animation students.
When Nemo is being abducted by the pair of divers early on in the movie, Marlin attempts to rescue his son but is blocked and then blinded from the flash of one of the divers underwater cameras. The camera’s model number is A-113.