The former couple - who finalised their divorce in 2005 after three years of marriage - are said to have had a business dinner in Toronto, Canada, last week, where they are both appearing at the Toronto International Film Festival.

Jennifer, 39, who is promoting her new film "Management," reportedly visited the 44-year-old actor's hotel for the meal - the first time they have seen each other since their divorce.

Prior to the festival, where Brad is promoting "Burn After Reading," Jennifer was said to be "terrified" of bumping into her ex-husband.

A source said: "Her people are checking and double checking her schedule to make sure she doesn't go within a mile of Brad, let alone bump into him. "

She's already concerned about her break-up with John Mayer overshadowing her movie, so the last thing she wants is another ex in the picture. It's inconvenient having to duck and dive but more than anything she finds it embarrassing."