Mckenna Grace is the star of "Gifted," playing Mary, a first grader with extraordinary mathematics ability, living with her Uncle Frank, played by Chris Evans. In an interview, she talked about what she and Evans did off camera, crying on cue, and what might be difficult for someone who is gifted.
What did you and Chris Evans do to get to be comfortable with each other?
We had an immediate connection. It was very special when I first met him. We were there ahead of time for...