Will Ferrell broke down on ‘Conan’ Thursday night. The star of the upcoming film ‘The Campaign’ was preoccupied with another set of movie stars, Kristen Stewart and Robert Pattinson. Ferrell was unable to stay his tears as he described the pain he felt for the pain that Pattinson and Stewart must feel as their fairytale romance has been rocked by Stewart’s admitted affair with the director of her previous film. Despite Conan O’Brien’s repeated attempts to calm the usually unflappable funnyman, Ferrell could not be consoled, proof that Stewart’s affair has hurt not only those involved, but those who who loved their unmatchable love, too.