Pixar has always been known for making children’s movies adults can love too, occasionally to the point of giving their youngest viewers more than they are ready to handle. The tear-jerking opening montage of Up is the classic example—a four-minute lesson in the cruelty of time and mortality that is way beyond the emotional reach of many children—but let’s not forget the resigned embrace of death in Toy Story 3’s furnace scene, Mr. and Mrs.