Terminator director James Cameron warned that global warming is a “real threat” on the same day that giant computer network Skynet was supposed to gain consciousness – if you believe the events shown in Terminator: The Sarah Connor Chronicles, that is.

Skynet was due to spring to life at 8.11pm on April 19 and on April 21, it was due to attack humanity.

But Terminator director Cameron tweeted that global warming is a greater threat.

He wrote: “Skynet was supposed to go operational tonight. Instead of machines taking over, we have the very real threat of global warming.”

But if you’re starting to worry, don’t. George Orwell’s grim world of 1984 never played out in reality and neither did Stanley Kubrick’s movie 2001: A Space Odyssey.