Seth Rogen spent 10 months growing out his beard just to shoot one additional scene for his new movie An American Pickle.The Pineapple Express star takes on double duty in the film, which is based on 2013 New Yorker novella Sell Out, about 1920s factory worker Herschel Greenbaum, who falls into a vat of pickles and is brined for 100 years, only to emerge in his great-grandson’s modern-day New York without having aged a day.Rogen grew out his facial hair to play Herschel first and then went