Paramount tacked the long True Grit trailer in front of The Social Network this weekend. Now I know more than I want to know, typically. Instead of wondering if Josh Brolin and Matt Damon are both bad guys, we see that Damon plays a Texas Ranger helping Bridges' U.S. Marshall Rooster Cogburn on a two-man job to track 14-year-old Mattie Ross's target: Tom Chaney (Brolin), the man who killed her father. And we get more glimpses of banter among the group tracking Brolin.