The Incredible Mr. Limpet
61% TMDB 1964 Comedy, Preschool, Children 1h 42m
Blend of live-action and animation about a scrawny bookkeeper who is turned down when he tries to enlist during World War II, but goes on to help the war effort when he is magically transformed into a fish and helps track down Nazi U-boats.
Don Knotts, Carole Cook, Jack Weston