Sources close to the production expressed concern that she "could injure herself due to the weight loss" and called into question her insistence on personally performing action scenes.

However she does not appear to have been discouraged and seemed happy to throw herself about on the top of the lorry - secured by safety wires - in the latest shoot on Interstate 787 in Albany, New York State.

In the film, she plays an officer in the Central Intelligence Agency, called Evelyn Salt, who is accused of being a Russian 'sleeper' spy and caught up in an alleged plot to assassinate the US president.

The role was originally going to be played by Tom Cruise, but the part was re-written as a woman to enable Jolie to take the role.

The film, which is being made by Columbia Pictures, is due to be released next year.

Jolie's husband Brad Pitt, 45, and their children have moved from Los Angeles to New York so they can be together during the production.

Resource: http://www.telegraph.co.uk/news/newstopics/celebritynews/5226947/Angelina-Jolie-in-high-speed-stunt.html