While castaway Tom Hanks may have already dug up a Spanish galleon’s worth of booty on his desert island, this week’s big winner resides in the No. 3 slot — Traffic. After a limited opening before New Year’s, the star-studded Steven Soderbergh drug-war epic added 1,506 sites and racked up $15.5 million, bringing its two-week street value to $16.0 million. Spurred by a string of early award-circuit honors, Traffic seems on track to become this year’s little indie that could. Others looking to take a page from Soderbergh’s wide-rollout playbook in the coming weeks include Finding Forrester, Thirteen Days, and O Brother, Where Art Thou?