Hi! Just a brief summary here on the DIS for those who don't click on links.........lol
The audition consists of an animation ("acting"/improv) portion to demonstrate your ability to act without talking and with exaggerated motions, as well as a dance portion. There is also an advanced dance portion, which they will pull you for after you perform the initial dance if they think you look qualified. In terms of how long it is, that varies. I auditioned in Rochester last October, and there was about 40 people there. I was #10, and I would say I was there about 2 hours. However, if you go to one of the bigger locations (Orlando, probably San Fransisco) I've heard of at least 100 people, and it may take longer. At my audition we did the animation portion first, then the dance, but I've heard that at some they do the dance, then make a cut, then do the animation portion.
The auditions cities are located at the CP website; once the time comes closer (in about a month or so) they will post dates, times and official locations within the city where the auditions will be.