Charlize Theron doesn't understand why The Hills is so popular

Oscar-winning actress Charlize Theron doesn't understand why The Hills is so popular.

"I realized that this f---ing show is huge," Theron told MTV News. "Now I'm going to ask you a question: Why?

"Why is it so big?" she asked. "It's about nothing! This is a free country. Freedom of speech! You can tell me right now to my face that Reindeer Games was a piece of sh--. That's totally fine.

"But The Hills is about nothing," she continued. "I think the girls are beautiful and when they cry their mascara runs and that's real, but I don't get it! [Pause.] I am a nana. I'll just take it. I am a nana. Maybe I need to watch the shows some more."

Theron, 33, said she watched a couple of episodes in different languages because she was on a world tour.

Image WENN