- When this movie was first released in Sweden, it was strangely named 'The Spiders'
- Was originally supposed to be filmed in color. Two days before shooting began a nervous studio cut the budget and the film had to be made in black and white.
- It was also supposed to be in 3-D. Some elements of the 3-D effects, such as the ants having extreme close-ups and the flame throwers shooting straight into the camera, were used in the film.
- This was Warner Bros.' highest grossing film of 1954.
- The flamethrowers used in the movie were standard World War 2 weapons and were loaned by the US Army. The actors handling the weapons were WW2 combat veterans who had actually used them in battle.
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