‘The Killer Shrews’ is a 1959 sci-fi film. Thorne Sherman and his first mate Griswold deliver supplies to a group on a remote island. On the island, a doctor works to make humans half-size. This, apparently, will reduce world hunger as smaller humans would presumably eat less. Unfortunately, his experiments have also created some giant, venomous shrews.
‘A sequel, ‘Return of the Killer Shrews’ was produced in 2012, again starring James Best as Thorne Sherman.”