‘Stiller & Meara: Nothing Is Lost’ Review: Ben Stiller Directs a Moving and Unusually Candid Tribute to His Comedy Legend Parents

Ben Stiller remembers the day he told his son Quin — then only eight or nine years old — that he had to go to Canada for a few months to shoot 2014’s “Night at the Museum: Secret of the Tomb,” the third and most recent installment of the popular children’s franchise. Little Quin pleaded with his dad to stay home, as any kid would upon learning that their father was about to make another Shawn Levy movie, to which a mealy-mouthed Stiller replied: “But you love ‘Night at the Museum.’”

In a vacuum, it might be hard to appreciate how that story made its way into the searching and poignant new documentary that Stiller has made about his own parents, the renowned comedy duo of Anne Meara and Jerry Stiller. In the context of “Stiller & Meara: Nothing Is Lost,” however, it’s all too easy to understand why such…