This movie is my Bible.
In other news, it was way ahead of the times, with serious commentary on global warming. This was the first appearance of Rodan, who came to be a major icon of the Toho brand, one of the most OP characters in almost every video game it was in, and one of my personal favorite daikaijuu. It also had a unique Rodan design which was never used again, and was the only movie to feature two Rodan that I know of. It also introduced the Meganulon species, which became a rather interesting antagonistic group in Godzilla vs Megaguirus.
All in all, it had all the makings of a good movie. conflict, love, giant bugs, drunken miners fighting, and, as the title says, FREAKING RODAN!!