Dummies find their voices in "Dumbstruck" (2010), a fascinating documentary from filmmakers Mark and Lindsay Goffman. Visit the annual Vent Haven convention in Ft. Mitchell, KY, and meet 13-year-old Dylan, a shy boy who finally finds his voice in the formof a smart-mouthed puppet named Reggie; former beauty queen Kim; veteran cruise-ship performer Dan; Terry, a winner on "America's Got Talent;" and Wilma, a former security guard bringing smiles to senior citizens. Follow these performers across the U.S.,Mexico, the Bahamas and Japan, as they follow their own dreams of a puppetry career.