What makes a good 'Scream Queen'?

Naomi Watts

The Oscar-nominated actress ("21 Grams") has delved into the scream queen universe with 2002's "The Ring" and 2005's "The Ring Two." Though she didn't quite live up to Fay Wray's legend in Peter Jackson's lavish 2005 remake of "King Kong," she certainly didn't miss a beat as Ann Darrow.

Decibel level: 9