If you go to Fantasyland right at rope drop, you should be able to ride most things in an hour. At that time, a lot of folks run to the character meet and greet spots in Fantasyland - we just walk right onto Snow White, Peter Pan, Winnie the Pooh - it's fairly empty that early. Dumbo is the one that can slow you down because the ride has to stop for passengers to get on and off, so that line crowds up quicker than most. Not sure if you want to do the movie too - that will take more time, and of course, It's a Small World is the longest ride in Fantasyland, so that takes up time. Pick the rides that fill up the quickest and do those first and then see how much time you have left for the rest of them.