Adapted from the play by Peter Blackmore, this breezy British comedy that predates "Splash" concerns an English doctor who encounters a mermaid named Miranda during a fishing holiday in Cornwall. When Miranda asks the married physician to show her London he happily obliges─resulting in lots of comedic complications and huge laughs. Glynis Johns, Griffith Jones, Googie Withers star. 80 min. Standard; Soundtrack: English Dolby Digital mono.