
That's the topic for our first tweetathon, which is sort of a blogathon for Twitter. If you would like to participate, just go to Twitter and send a tweet with your five film picks and the hashtag #5FaveSciFiFilms.
If you'll include our Twitter name @classic_film, we'll share your selections with over 13,000 other movie fans.
Of course, you don't need a Twitter account to participate. You can also join the fun by listing your picks on Facebook, Instagram, or any other social media platform. Or, you can just leave a comment below with your five favorite science fictions films.
To get this event jump-started, here are our #5FaveSciFiFilms:
1. The Day the Earth Stood Still (1951)
2. Quatermass and the Pit (Five Million Years to Earth) (1967)
3. The Andromeda Strain (1971)
4. The Power (1968)
5. The Day the Earth Caught Fire (1961)