Many were surprised and shocked to learn of Angelina Jolie and Brad Pitt's divorce – including their famous friend George Clooney.

In fact, Clooney, 55, heard news of the split through the media. At Tuesday's Leaders Summit for Refugees at the United Nations General Assembly in New York, the actor was asked by a CNN reporter to comment on Jolie and Pitt's breakup.

"What happened?" Clooney said, clearly taken aback. "I didn't know that. I feel very sorry then. That's a sad story and unfortunate for a family. It's an unfortunate story about a family. I feel very sorry to hear that."

Adding, "This is the first I've heard of it."