The Naked Jungle

A powerful, brooding owner (Charlton Heston) of a plantation in the wild and treacherous South American jungle meets his charming American mail-order bride (Eleanor Parker). But he becomes wary of the beautiful and talented lady, and wonders why she would leave America for the rigors of jungle life. They're both threatened by the advance of billions of relentless killer ants who are making their way across the jungle, cutting a path of creeping horror which is 20 miles long and two miles wide.