I saw BATTLE IN OUTER SPACE on the big screen at the Film Forum a few years ago and it was quite a revelation. I remember a sequence involving a moon ground transport vehicle taking the astronauts from one part of the moon to another and they had these fantastic P-O-V shots from inside the vehicle showing the passing moonscape that made me feel like it was actually filmed on the moon. The actual moon landing shots from nine years later pale in comparison.
MOTHRA, of course, is a great movie anyway and needs no further words from me. However, coincidentally, I only recently discovered some music videos of the Peanuts (the twin sister act that plays the diminutive island fairies whose song summons Mothra) while researching songs performed by two girls from Morning Musume who formed a duo called W and covered a lot of songs done by earlier J-pop duos including the Peanuts. I posted comparison links on my J-pop-themed blog to the different versions.
Here's the link to the Peanuts music video compilation (3 in one):
http://www.youtube.com/watch?v=6CzFppQFcKs