Bringing the titular killer doll from "M3GAN" to life was a labor of love that combined puppeteering, animatronics, and a human actor in a doll mask, but it's that human performance that really takes the creation from mildly creepy to terrifying. (Read our review!) Twelve-year-old actor Amie Donald portrays the high-tech toy with a perfect mix of inhuman grace and jerky, robotic movements, and it turns out that much of M3GAN's physicality came directly from Donald, who did her own stunts and...