Parents need to know that Won't You Be My Neighbor is a poignant biographical documentary about Fred Rogers, the creator of public television's iconic Mister Rogers' Neighborhood. Mixing footage from the show and interviews with Rogers' widow, children, colleagues, and friends, Academy Award-winning director Morgan Neville traces Rogers' life's work and legacy to educate, encourage, and inspire very young children. Expect a few swear words -- including "bitch" (in a Saturday Night Live sketch spoofing the show), "ass," "d--k," and "bastard." There are also brief clips of footage from the Vietnam War, civil rights protests, assassinations, and the Challenger disaster, as well as discussions of tough themes (from divorce to grief to Rogers' post-9/11 public service message) and how the show handled them in a child-friendly way. Otherwise, this documentary is focused on the positive aspects of Rogers' personal and professional crusade to put children, not profit, first in children's programming. Compassion, integrity, and the healthy expression of emotion are all strong themes.