Based on an original novel written by John Wyndham and published in 1951, “The Day of the Triffids” starred Howard Keel and Janette Scott. It wasn’t, however, a very faithful adaptation. It’s not a bad film – with the possible exception of its deus ex machina ending – but it doesn’t have much relation to the novel.
It is one of the greatest and most influential science fiction and horror movies of all time – its opening sequence inspired ’28 Days Later’; the alien plants helped inspire ‘E.T.’, and the list goes on.
Science Fiction Double Feature — Rocky Horror Picture Show original cast