The Hellstrom Chronicle [Blu-ray]

Professor Hellstrom (Lawrence Pressman), a famous entomologist, is so shaken by the savagery and ferocity he sees in the world of predatory insects that he films this "documentary" to warn mankind that it is in danger. Included in the accompanying documentary footage are such spectacles as a war between opposing colonies of ants and the cannibalistic mating practices of the praying mantis.