Also Known As: NATO. NATO helps exhibition influence federal policy-making and work with movie distributors on all areas of mutual concern, from new technologies to legislation, marketing, and First Amendment issues. The largest exhibition trade organisation in the world, representing more than 29,000 movie screens in all 50 states, and additional cinemas in 50 countries worldwide. Their membership includes the largest cinema chains in the world and hundreds of independent theatre owners too. On the web: Official Home Page