Tears are all fine and dandy, until part of your 68-year-old face starts smearing down your cheek. "It's funny, we've discovered that when I'm crying in the prosthetics — the older age makeup — tears act like a weird lubricant that removes it," Moore said. "We almost have to wait until the end of the day to shoot anything where I potentially would be emotional and might cry, because the prosthetics will start to disintegrate in a way. I'm not sure if it's the salt in the tears that kind of break it up, but yeah, it breaks up the glue."