Arrive about 45 mins early for the show if there is only one showing the day you go. We prefer not to sit too close to the front as we don't want to get wet but that's personal preference.
Please follow CM's directions for seating. They're working hard to seat a lot of people in a fairly short amount of time and do an amazing job but it's so much easier when people follow their directions.
Depending on the age of your child(ren) there are some intense scenes.
Enjoy! It's a great show and one of our favourites at WDW!!