Viral Marketing “Bad Grandpa” Film Releases Comedic National Grandparent’s Day PSA’s Christopher Moore, September 9, 2013 With Paramount’s upcoming release of Jackass Presents: Bad Grandpa in October, they’re finding a unique way to market the film. National Grandparent’s Day was this past Sunday, September 8th, and three Public Service Announcements were released by Paramount to celebrate the holiday. These are definitely not your conventional PSA’s by any stretch…