Get tickets to see the show immediately upon entering the park. As the previous poster stated, the show can reach capacity on the weekend and 'stand by' guests are not guaranteed seats.
The show is 40 minutes long and is fabulous. People have different views on where to sit, however this is a show where front row center (right next to the stage) isn't the best seat in the house. I have enjoyed the show from both orchestra and mezzanine level. The mezz level is 55 steps up and down (balcony is 110 steps).
I saw it twice today, it is never the same show twice!
Diane