Reese Witherspoon was on set for Devil's Knot today in Atlanta. She went to Georgia to work on the picture, which is based on the story of the West Memphis Three, a group of teens convicted in the 1990s of murdering three children. She'll star opposite Colin Firth and The Killing's Mireille Enos. Reese has company between scenes, since her son, Deacon Phillippe, went to Georgia as well. The South is the latest stop for Reese, who's been active on the travel front lately. She was recently in Texas to attend pal Matthew McConaughey's wedding, then went to Chicago to accept a Gene Siskel Film Center award.