Rotten Tomatoes has a character guide for the movie that is setting advance-sale records at Fandango: “Twilight”
Fandango reports that:

• More than 500 of Thursday’s Twilight midnight showtimes are sold-out in advance online – from Poulsbo, Washington to New York’s Staten Island;
• 86% of daily ticket sales on Fandango.com are for this single film;
• 67% of our online survey respondents contend that Twilight’s most appealing element is its “love story”; 18% selected the “vampire lore”; 8% picked the “thriller elements”; 7% chose other elements.