Splash (1984)

A young man is reunited with a mermaid he briefly encountered as a boy and falls in love with her without knowing her secret.

Director: Ron Howard

Cast: Tom Hanks, Daryl Hannah, Eugene Levy, John Candy, Dody Goodman, Shecky Greene, Richard B. Shull, Bobby Di Cicco, Howard Morris, Tony DiBenedetto, Patrick Cronin, Charles Walker, David Knell, Jeff Doucette, Royce D. Applegate, Tony Longo, Nora Denney, Charles Macaulay