Avatar plowed through an East Coast blizzard to score $73 million at the box office this weekend, falling short of only I Am Legend for a December opening, reports Variety. The James Cameron blockbuster recouped its hefty $220 million pricetag with worldwide sales. The Princess and the Frog fell to second place at $12.2 million, while The Blind Side took third with $10 million. Rom-com Did You Hear About the Morgans was a lackluster fourth with $7 million. (More Avatar (film) stories.)