Cinema: Two of a Kind

Hollywood's latest slogan is "Movies Are Better Than Ever," but it is hard to prove by two of its latest cinemusicals. Neither better nor worse than any of their predecessors in a long assembly line, both are profusely Technicolored illustrations of creative poverty in the midst of technical plenty. They also share backstage settings and a weakness for toying archly with the idea of unmarried pregnancy—a subject which Hollywood might be expected to regard as no joke.

Nancy Goes to Rio (MGM) works some Latin American backgrounds and tempos into the story of a...