From Wikipedia, the free encyclopedia. Jack Finney (October 2, 1911 – November 14, 1995) was an American author. His best-known works are science fiction and thrillers, including The Body Snatchers and Time and Again. The former was the basis for the 1956 movie Invasion of the Body Snatchers and its remakes. Description above from the Wikipedia article Jack Finney, licensed under CC-BY-SA, full list of contributors on Wikipedia