"As long as young hearts endure, so will National Velvet and movies like it. In her starmaking role, Elizabeth Taylor plays Velvet Brown, a wide-eyed adolescent who, assisted by her jockey pal (Mickey Rooney), trains Pie, a horse she won in a raffle, for the Grand National Steeplechase. Of course, no girl can ride in the National, can she? Yet Velvet, posing as a boy, assuredly does. Superbly directed by Clarence Brown, this exciting winner of two...