Recently re-watched this one-- you've got a lot of choices with this one-- you can watch it English Dubbed (which I always try to avoid), you can watch it in Japanese with English Subtitles and you can watch it in Japanese with English Subtitles but Nick Adams speaks English all the way through.
Nick Adams is an astronaut with the Japanese version of Nasa so it's natural he becomes pretty much Earth's Chief Ambassador when a group of Aliens come a calling with a request to "borrow" Godzilla and Rodan to take care of the problem they're having with Ghidorah, whom they refer to as Monster X-- because that's how they roll. Kimi Muzino is an alien spy chick and she's great in everything she's in, so is Adams and Akira Takarada and its directed by Ishiro Honda who had been with Godzilla since the first one and was a director the likes of Akira Kurosawa not only liked but looked up to his talents-- so that's saying this guy ain't no bum.
This one is pure goofy fun, and I dig it a lot.
Grade: A My hero zero!