There is a bizarre slant to this movie; what with Don Knotts leaving his loveless marriage to become a fish - and fall in love with a ladyfish. Plus you have the friend going out dancing with his now-widow. It doesn't seem to have it's heart in the right place. Plus it's all set against the backdrop of the War. And of Limpet longing to be both a fish and war hero. I think it was interesting for its time, but that time has passed.