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.
By Joseph Smith (see The Day of the Triffids (Allied Artists, 1962). Joseph Smith Original Movie Poster Art (22″ X 27.25″). Heritage Auctions (November 30, 2012). Archived from the original on 2015-09-27.. This artwork has also been attributed to Reynold Brown. Brown’s own records indicate that he worked on the campaign for Day of the Triffids: Movie Campaigns, A Listing. Retrieved on 2013-03-12. The narrative accompanying the sale of the original artwork in 2012 by Heritage Auctions looks to be conclusive, and supports the attribution to Smith. It is possible that Brown contributed to the final poster design. – http://wrongsideoftheart.com/wp-content/gallery/posters-d/day_of_triffids_poster_01.jpg, Public Domain, Link
As mentioned in:
Science Fiction Double Feature — Rocky Horror Picture Show original cast