Two Old Men

In Brad Bird's films the Incredibles and The Iron Giant, he includes the cameo appearances of two of the finest animators of Disney's history- Frank Thomas and Ollie Johnston. Frank and Ollie were two of the original 'Nine Old Men', a name which was given to a group of supervising animators by Walt Disney. These nine animators oversaw the production of Disney classics such as Snow White, Bambi, and Pinocchio.Frank Thomas

Ollie Johnston

In The Lady and the Tramp, Lady's character was animated for most of the film by Ollie Johnston, while Frank Thomas was responsible for the famous scene where the two dogs chew on a string of spaghetti and share their first kiss.

When Frank and Ollie appeared in the Incredibles as spectators (courtesy of Brad Bird), they say to each other;

Frank: 'You see that? That's the way to do it. That's old school.'
Ollie: 'Yeah, no school like the old school.'

This is probably intended as a refernce to their time working at Disney together, along with the other Nine Old Men- a time during which some of Disney's finest films were produced.