【American classic porn movie Hot Lunch (1978)】

Tube stations in London have American classic porn movie Hot Lunch (1978)been using their notice boards to send messages of hope to commuters, following Wednesday's terror attack.

Many of these images have been posted on social media and retweeted hundreds of times.

However, one image doing the rounds is not quite what it seems.

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The message, which couldn't be more British, says: "All terrorists are politely reminded that THIS IS LONDON and whatever you do to us we will drink tea and jolly well carry on. Thank you."

It was also read out by Nick Robinson on BBC Radio 4's Today programme.

Upon closer inspection, the font used is incredibly similar to the one used by this simple Web app to create fake Tube signs.

Here's an example we created:

The image was shared with good intentions by journalists, pundits and politicians alike:

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Some acknowledged the image was manufactured, but still felt it captured the spirit of London:

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If you want to share actual signs from London's tube stations, here's a Twitter moment with plenty of images to choose from.