Pedro's helmet we actually designed so that it sat on his shoulders and that was really smart. Applying that design to the other characters might've been a good idea. And then the other thing for the actors is the sound. Usually, particularly in sci-fi movies, they try to do action in the helmets, but then when there's big dialogue scenes, they try to move that outside the helmets. And for us it's like, "Nope, you're in a survival scenario. We're not going to come up with excuses for you to get out of your helmets." But when actors are performing, they have to get used to the sound bouncing back at them. You're kind of in an echo chamber.