Ron Howard believes TV stars will bring added authenticity to his upcoming movie "EdTV." "So many of the TV people have been in the media glare recently and know what it's like to go from anonymity to full exposure in a short period of time," Howard told TV Guide. In addition to Matthew McConaughey, who plays a man who suddenly becomes famous, the movie features Jenna Elfman, Woody Harrelson, Ellen DeGeneres, Martin Landau and Rob Reiner. "Most people link celebrity with a kind of recognition that leads to happiness. And in some instances it can lead to some wonderfully happy moments," Howard said. "But I don't believe that it's really the thing that can satisfy somebody." Howard is a TV veteran himself, having starred in "Happy Days" (as Richie) and "The Andy Griffith Show" (Opie).