Angelina Jolie reportedly dislikes George Clooney - a close friend of her lover Brad Pitt - so much she refused to attend the New York premiere of his movie Michael Clayton last month.
A source told Life and Style Weekly magazine: "Angie is not particularly close to George, so she didn't see why she had to be there."
"She asked Brad if he minded going alone, but Brad says it wasn't really a question. And it was fine with him."
Angelina, 32, allegedly fears lothario George will lead Brad astray, and distract him from his duties as a father.
The source added: "Angie doesn't get along with any of Brad's friends. When they are back in Los Angeles she discourages him from going on boys' nights out."
Brad, 43, and Angelina are parents to adopted children Maddox, six, Pax, three and Zahara, two, as well as 16-month-old biological daughter Shiloh.
It appears George is no fan of Angelina either.
He recently slammed female stars who adopt children from foreign countries, claiming they are doing it to fill a "gap" in their careers.
George, 46, said: "There is nothing more cruel than Hollywood. In a period of years, a woman's career is over. After they have been beating down your door with work, they toss you out from one day to the next. The first thing a lot of women do to fill the gap is adopt kids. That's a bit weird isn't it?"