Amal Clooney has a new fan in the form of Hollywood power player Julia Roberts.

The 47-year-old Oscar winner has given her seal of approval to George Clooney's humanitarian wife, whom he married in Venice last year.

"We went out to dinner. I met her at dinner," the Pretty Woman star told Extra TV this week.

"George doesn’t need my approval, but I’m quite enamoured with her."

This quiet word of praise from one of cinema's biggest stars is sure to please George, who recently described Amal, 37, as "an amazing human being" and "one of the smartest people I've ever met".

'I’m quite enamoured'; Julia Roberts waxes lyrical over Amal Clooney