Amusement parks lure 'scream addicts' on Halloween By: CNBC.com News September 13, 2014 at 11:00 AM EDT Theme parks take a dark turn for Halloween with a maze run by psychotic clowns, a "world of deranged dentistry" and an interactive zombie invasion. Read More >> Related Stocks: Cedar Fair LP Comcast Corp Comcast Corp Seaworld Entertainment Inc Company