Here is a short clip (around 8 minutes time) which was one of my most favorites clips at the time I was a student at AM.
Now that it's published, I'm very happy to share this clip with you guys.
I've recently found this page today, which let's us watch many animated clips (many of them are disney's classics) with a frame by frame snapshots.
Some of the clips shows well the animation principles and it's very pleasing to watch...
Frame By Frame