Courtesy of INFDaily.com

Robert Pattinson's Letterman appearance reveals all.

Let's face it: you probably don't love Edward Cullen because of Edward Cullen. You probably love Edward Cullen because of Robert Pattinson. Pattinson's press tour to promote the Twilight Saga: New Moon has been ruthless (just ask poor Ryan Seacrest), yet he's still charming crowds with his lovable high-energy. His appearance on The Late Show With David Letterman Wednesday night was a prime display of Pattinson preciousness, and we have video here.

Rob talked about dating, his first film ("My entire part was dubbed over by another actor," he laughs), biting, and -- our favorite part -- what it's like for a British actor to speak with an American accent. Watch Robert Pattinson's Letterman interview to see what two American words are the funniest for a Brit to say.

It was a very charming interview. We can also tell that Dave doesn't understand the Twilight craze. That's ok - we do!

Quiz: Test your knowledge in the New Moon Trivia Quiz!

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