The third in the trilogy of films based on Nigel Kneale's seminal Quatermass series, the film was made by Hammer Studios in 1967, directed by stalwart Roy Ward Baker and stars Andrew Keir as the titular scientist, battling evil alien forces that threaten to take over the world, and also stars James Donald, Barbara Shelley and Julian Glover. Nigel Kneale's Quatermass series has been said to have influenced everyone from Stephen King to John Carpenter to Dr Who.
And it scared the living you-know-what out of me as a boy.
As ever with our competitions, entry is as easy as falling off a log. In order to have your name dropped into our virtual tombola, you need to retweet our competition message - follow us @lostintheplex to make sure you see it - and then give us the answer to a very simple question, which is...
What is the scariest movie you have ever seen?
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This is a one day only competion and we will be drawing the winner late tonight. So don't hang about, eh?
There will be another chance to win on Monday.
