Angelina Jolie will be portrayed as a 'homewrecker' in a tell-all book written by her former bodyguard, it's claimed.

Insiders say the Changeling star - who is up for Best Actress at this year's Oscars - is seeking legal advice over a former bodyguard's alleged plans to expose intimate details of her private life.

Mickey Brett headed up the Jolie/Pitt's security detail when the couple went into hiding in Namibia before the birth of baby daughter Shiloh in 2006 but was reportedly fired last year.

And it seems Mickey may be in the clear to go ahead with his dirt-dishing after as he was never forced to sign a confidentially agreement while in the couple's employment.

A publishing insider tells In Touch Weekly magazine, "He knows everything about Angelina.

"It's going to be one of the most explosive books ever written.

"It will include all the sordid details of how they (Pitt and Jolie) got together while Brad was still married to Jennifer Aniston."

Brad denied suggestions that he engaged in a "dastardly affair" with Angelina in a recent magazine interview.

See Brad and Angie in Paris below