* The original plan by New Universe Pictures was to re-edit the Japanese cut and make it a comedy a la What's Up, Tiger Lily? Fortunately for us, Raymond Burr was against it and the plans were scrapped.
* The movie was re-edited and re-shot to a cost of about $3 million. Considering that the original film's budget in Japan was about $6 million, that's a lot!
* While a hit in Japan (grossing about twice its budget), it was not a hit in America. New Universe only made a couple million dollars on the whole thing, marketing aside.
* This is one of only three Godzilla films released theatrically in America. The other two are Gojira in 1954 and Godzilla 2000 in 1999 (don't ask). Yes, I'm not counting Roland Emmerich's movie!