It appears that Twi-hards react differently to Robert Pattinson & co. depending on their nationality, Taylor Lautner explained on 'Late Show' (weeknights, 11:35PM ET on CBS).

"In Japan, they're very sensitive," said Lautner. "They cry a lot." Comforting them with a touch on the shoulder only makes things worse: Weeping turns to bawling, and then fainting.

"In Brazil, they're very aggressive and physical ... They broke down the barricades," he said. "They literally would grab our legs and our arms and we had to walk with them on top of us to the car."

During one press junket, security had to call in the National Guard to fend off 2,000 fans who'd stormed the hotel lobby.