There's a couple of fascinating videos I've discovered featuring Walter Lantz, the creator of Woody Woodpeck and many other memorable characters for Universal Studios.
One video is narrated by Mr. Lantz as he walks us through the responsibilities of an animation director, little changed over the time span of about 50 years from the time I'm guessing the footage was shot. The other video goes all the way back to the 1930s, as we see a production crew creating an Oswald the Rabbit cartoon with Walter Lantz at the helm.
Both are must see videos for the animation enthusiast, and you can find them by following this link to the AN Education Forum. If here's more videos to be found along this subject they'll be added to the topic.