Reese Witherspoon, who is currently expecting her third child, arrived at LAX yesterday to board a flight. The pregnant actress flashed a smile and carried a tote bag monogrammed with the initials of her name — Laura Jeanne Reese Witherspoon — through security. Reese spent much of last week shooting her latest movie, Devil's Knot, in Atlanta. She had her son, Deacon Philippe, visit the set of the film during his Summer vacation, and since returning home to LA, Reese has spent some time with her husband, Jim Toth. In between her work and family commitments, she also took a quick trip to Chicago last month. Reese was given the Renaissance Award at the Gene Siskel Film Center, where she joked about her baby bump by saying she felt "very round" during the evening's festivities.