Actress Reese Witherspoon brought filming on her new movie to a halt after developing a painful blood blister on her eye. But the actress was more concerned about closing production on the set of Four Christmases for half a day, than her eye condition. An on-set source says, "Reese kept apologising to everyone from producers to the lighting guys." In the film, Witherspoon stars alongside Tim MCGraw and Vince Vaughn, who is also one of the movie's producers. The source adds, "Reese was especially concerned about Vince's reaction to her causing the work stoppage. He's not only her leading man but one of the film's producers. He was more concerned about her eye than losing a day's shoot."