I gave this movie an extra star for the amazement generated by wondering how it got to be so bad. It's possible to put this into the "so bad it's good" category. George Zucco turns up from being the Mummy's caretaker to take a similar position with BaLu, which as we know is the last 2/3 of Bah BaLu. If you follow the geography (with helpful map) at the beginning of the film, you might wonder how any mermaids swam that far upstream, much less the singing mailman.
Perhaps the best way to approach this is with the mindset of a child in the first decade of life--just enjoy the action and the antics, and not worry about the excuse for it all.
Perhaps the best way to approach this is with the mindset of a child in the first decade of life--just enjoy the action and the antics, and not worry about the excuse for it all.