Millie Bobby Brown is radiant and charismatic in “Enola Holmes,” in which she stars as the younger sister of the famous detective, Sherlock. All the poise and presence we saw in her over the past three seasons of “Stranger Things” are there, only now she gets to be a kid (and a British kid, at that), and it’s like discovering her for the first time all over again. This is a fun (if overlong) family-friendly adventure on Netflix. My review at RogerEbert.com.