Phase IV (Phase Four)
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In this moody sci-fi outing, the Earth is overrun by newly evolved gigantic genius ants from Arizona that eat everything in their paths leaving a trio of scientists to figure out how to stop them. The film is the directorial debut of animator/title designer Saul Bass.

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Rotten Tomatoes Score: 83%

Critic Reviews from Rotten Tomatoes

"Should forever dispel anyone's image of ants as little black dots"
‑ Shane Burridge, rec.arts.movies.reviews
"A killer bug flick upgraded for the downbeat 70s, a small scale B-picture reworked for the post-2001 hard sci-fi set."
‑ David Cornelius, DVDTalk.com
"With its amazing bug footage, and psychobabble scripting, it's The Hellstrom Chronicle (an obvious influence) taken into Twilight Zone territory"
‑ Bill Gibron, PopMatters
More reviews for Phase IV (Phase Four) on Rotten Tomatoes