1981
http://www.imdb.com/title/tt0081850/
When a comet blinds nearly everyone in the world, a genetically-engineered species of plant takes over.
A terrible catastrophe has struck the population of Earth. Almost everyone on the planet has been rendered blind by the arrival of a bright comet and its debris lighting up the darkened skies, but the brightness has caused permanent eye damage. Bill Masen, who was unable to watch the spectacular but deadly free firework display, finds himself in a nightmarish world where he believes himself to be the only sighted person left. But soon he finds a soul-mate, Jo Pleyton, who can also see. As the days progress, they find more and more sighted people and together they make plans to build a future. But there is a problem. A walking, carnivorous plant called a "Triffid," which up until now was kept safely in paddocks and zoos, has broken free and has discovered a taste for rotting, human flesh. The remaining blind are helpless and many fall prey to the Triffids’ lethal whipping sting, but can the sighted keep this fearful plant at bay?
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2009
http://www.imdb.com/title/tt1332653/
It’s an up-to-date setting of the 1962 Sci-fi thriller. With the world blinded and the Triffids set loose, it falls upon a band of scattered, sighted survivors to fight this carnivorous plant invasion. With a brave new world of maniacs, warring factions and renegades, the battle on the streets is not only directed at the purple-headed organisms but a battle to survive the sinister street-army headed by megalomaniac Torrence.
