Gamera vs. Guiron
 Gamera vs. Guiron (ガメラ対大悪獣ギロン Gamera Tai Daiakujū Giron Gamera vs. Giant Evil Beast Guiron released in the U.S. as Attack of the Monsters) is a 1969 kaiju (monster) genre film the fifth entry in the original Gamera series. It was one of five Gamera films to be featured as episodes of movie-mocking television show Mystery Science Theater 3000.