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Sorkin, who is famously something of a technophobe, has agreed to write the movie for Sony Pictures studio Columbia and has started talking about the project.

The film will tell the story about how Facebook was created and how it became a global success.

On his Facebook group, Sorkin says: "Welcome. I'm Aaron Sorkin. I understand there are a few other people using Facebook pages under my name--which I find more flattering than creepy--but this is me. I don't know how I can prove that but feel free to test me.

"I've just agreed to write a movie for Sony and producer Scott Rudin about how Facebook was invented. I figured a good first step in my preparation would be finding out what Facebook is, so I've started this page. (Actually it was started by my researcher, Ian Reichbach, because my grandmother has more internet savvy than I do and she's been dead for 33 years."

The production has been confirmed by Sony Pictures, but a spokeswoman for Facebook said that it had signed no deal.

Brandee Barker, a Facebook spokeswoman, said: "We are routinely approached by writers and filmmakers interested in telling the Facebook story or the stories of the more than 100m people who use Facebook to share and make the world more open and connected. At this point, we have not agreed to cooperate with any film project, but we are flattered by the interest."

As well as his TV work, Sorkin has written a string of hit films including 'A Few Good Men, 'The American President' and 'Malice'. His most recent film was 'Charlie Wilson's War', which was out earlier this year starring Tom Hanks as the eponymous senator and told the story about how he helped supply the Mujahideen with weapons to defeat the Soviet Union in Afghanistan.

His next film is 'The Trial of the Chicago 7', which is currently in pre-production.

A movie about Facebook would tell the story of how the company was founded by Harvard graduates Mark Zuckerberg along with Dustin Moskovitz and Chris Hughes.

In his television shows Sorkin famously likes to write fast-moving dialogue, much of which takes place between characters as they walk briskly along corridors.