The latest Coen Brothers creation, 'True Grit,' a new adaptation of the novel by Charles Portis, set a record at the box office on its opening weekend. The figures may not be that impressive to those who count records only in absolutes, but to fans of Westerns, the numbers are significant.  'True Grit' has set a new opening-weekend record -- for Westerns -- or as Boxofficemojo.com put it, the movie drew the 'top-grossing opening weekend ever for a straight-shooting Western.' The site says the movie has the highest Western movie gross overall when its five days of release are considered ($36.8 million).  The movie is the highest-grossing Western since 2007's '3:10 to Yuma.'