The only movie that, as a kid, scared the HELL out of me. Other favorites of the horror/sci-fi were "Night of the Living Dead", "Day of the Triffids", "Them", "Last Man on Earth", "Horror Hotel", "Creature from the Black Lagoon" and "The Fly".
As a kid, I savored a weekly diet of 50s and 60s Sci-Fi Cinema each Thursday night on WTTG's "The World Beyond!" Cut my teeth on Hammer, Corman and Quatermass.
I did forget to add "The Day Of The Triffids" on my original list.
D'OH!
Jack.