 Ray Liotta (qv) gained 25 lbs. for the role by eating foods heavy  in carbohydrates. Before he would shoot for the day, he prepared by  eating Chinese food because the soy in the food helps to retain  water and give him that "puffy" look. He also wore a fat suit under  his clothes at all times as well as prosthetic skin under his eyes  to give him an aged baggy look.