Gojira

A freighter is sunk by an unknown force. A second ship is sent but is also sunk. Three survivors are pulled from the sea but the fishing boat also sinks. An elderly villager claims that it is the work of the legendary sea monster Godzilla. On Odo island, a giant storm swamps the village and giant footprints are found to be radioactive. Dr. Yamane postulates that Godzilla had been driven out of his underground cavern by repeated H-bomb testing. Godzilla advances on Tokyo despite the Japanese armed forces and an electric fence.

The special effects are very effective especially considering the time. There is no hiding the miniatures but they are generally done well. The production is relatively big for a monster movie. And Godzilla's roar is second to none. It's great to see the model planes fire little rockets like fireworks at Godzilla. It even has a compelling message. It's a fine B-movie that deserves its iconic status.