I am searching for the title of a movie a saw in the 60's but looked old even then. It was a Sci-Fi about creatures from below the surface of the earth. The creatures were slimy and used spears. The tips of the spears could be removed and the shaft was hollow. People trapped in a dome of some sort surmised that the creatures used the hollow spears to fight among themselves.
SantaJim
3rd Jan 2017