The Big Mouth (1967)

Rob Reiner, Susan Bay, Percy Helton, Jeannine Riley

While fishing on a San Diego beach, Gerald Clamson catches ... a sea diver! Even more weird, the "fish" resembles him. The man, who is not (yet) dead, reveals his secret to the peaceful angler: he is in fact a mobster who has cheated his associates out of their diamonds. What does not help Gerald at