George Clooney reveals the most important thing to know about “massive” idiots.

Screen icon George Clooney said he was given a crucial insight into how idiots think – and it helped explain a lot about those into politics.

In comments spotted by digg, Clooney recalled filming the 2000 classic comedy “O Brother, Where Art Thou?” with Joel and Ethan Coen.

“I’m playing this huge idiot, you know and I’m playing him as a huge idiot,” Clooney told BBC 1 Radio’s Ali Plumb.

But that was the wrong approach because that’s not how you see huge idiots.

“Joel says, ‘Dude, you’re the smartest guy in any room you walk into,'” Clooney said. “And I was like, ‘Ohhh, that’s right.’ Because you know, as we’ve learned over the years in politics, stupid people think they’re the smartest people in the world. “

Watch the full interview, which includes his “Ticket To Paradise” co-star Julia Roberts, below: