Director Timur Bekmambetov has revealed the strange "meltdown" video he created is a trailer for his film Wanted.

The 'CCTV' footage which has been "doing the rounds" on the internet is of a bored office worker going beserk which ties in with the main theme of the film.

Bekmambetov said: "For me a movie is not what we see on the screen, it is the billboards, posters, TV spots, trailers, it is part of the event, the eventful movie."

Angelia Jolie, James McAvoy and Morgan Freeman all star in the action thriller which is currently on release.

Scottish actor McAvoy plays Wesley Gibson an assassin. His character suffers many humiliations in the film: an overbearing boss, a cheating girl and a dull office job until his life is turned around by Angelina Jolie, who plays the character of Fox.

McAvoy said about being in the film: "It was a very physical film and I had to get fit and go to the gym, which I don't really enjoy."

He added: "I hope my next movie is not an action movie, but equally I hope it is not another Atonement."

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