You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Forget Ebert: How Twitter Makes or Breaks Movie Marketing Today Universal, Sony, Others Wrestle With How Social Media Affects Box Office By Andrew Hampp, Published on October 05, 2009 21 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.