I haven't braved the movie theater yet, but my son won't watch a whole movie at home. However, I do have one suggestion.....if your child has issues with sound bothering him, because mine does, and we did this for him to enjoy fireworks, go to the sporting goods section of Walmart or K-mart or some such store and get the type of ear protection that they use when they shoot guns. It will muffle out most of the noise and help them to concentrate on just the show or the fire works, it doesn't mute out all sound, just the really loud sound, it really helped our son overcome his fear of fireworks, and it also helped out several of the kids in his class at school, I donated them to the class when we didn't need them anymore, and they use them all the time! They even went and bought more. They use them when they take the kids out shopping, bowling, skating, all sorts of things, it helps the kids to tune out the sensory overload problem and they focus on the fun or learning. Just a little tip.
Kris