Commercials production house Tool has hired former UTA agent Rio Hernandez to oversee an expansion into the film and TV business. Hernandez will take the title of Head of Feature Film and TV Development. Hernandez spent 6 years at UTA before leaving last summer. She started in the commercial business at Propaganda, and after that gravitated to film production. She worked in New York for Steve Buscemi, David O. Russell, Julia Roberts and Harvey Keitel before becoming an exec for producer Barry Mendel.