before both ron howard and tom hank become know for make gooey message movie and they team up on this very likable comedy . hank play a man search for love and find it in the form of daryl hannah . unfortunately and his dream woman have the habit of grow a tail and gill whenever she get wet and though in hanks world and this isn not necessarily a deal breaker . eugene levy be a scientist who want to capture the mermaid for his own fame and and john candy be hanks loud mouth brother . full of memorable scene and like hannah scarf down a lobster and shell and all and at a posh restaurant . hank reply to the disapprove look of the diner sit near them represent she really hungry . grade represent b plus .