Sunday afternoon classic sci-fi movie, The Monolith Monsters (1957), free on archive.org as it’s now public domain. Though the picture quality there is a little rough. You can find it elsewhere in higher quality, if you go looking.

Rocks from a meteor which grow when in contact with water threaten a sleepy Southwestern desert community

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Gawsh, dawrn it, that sounds very familiar! They even added a few touches from The Dunwich Horror. One wonders if August Derleth managed to wrangle a slice of royalties on this one?

…a brisk and efficient piece of entertainment, that has been put together with a degree of care which belies its modest budget.” (IMDB)

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