While Angelina Jolie is in hospital waiting to give birth, Brad Pitt has been in touch with his Ocean’s 11 co-star Julia Roberts for advice on how to raise twins.

The movie hunk is set to become a father again when his partner Angelina delivers twins in France, and reports suggest he has reached out to the Pretty Woman star for some expert advice.

A source tells America's The Globe: "Brad was all frantic about knowing if the rules for twins are different than raising or taking care of single babies.

But Julia told him it's the same - only twice as hard."

Jolie checked into a Nice, France hospital on Monday where she will remain until she gives birth. Roberts gave birth to her twins, Phinnaeus and Hazel, three years ago.