“The most moving parts are when she’s being a mom and an incredibly normal, disarmingly casual woman,” the Charlie’s Angels Star added. “I am not yet a mother, but I can feel that feeling of someone looking up at you and saying, “My mom could kill me.” “Don’t mess around with her, she’ll kill your.”

Stewart said, “That’s perfectly normal.” That’s how moms are. It’s nice that the most moving parts are not her isolated situation, how isolated she was, or how difficult it was to understand her. It’s those parts that say, “Yeah! That’s me and everybody who has a mother or is a child.” 

The full interview is available above.

Spencer Premieres in theaters Friday, November 5.