How did Shelburne Falls become a Hollywood backlot? The little village along the Deerfield River is set to host its second big-budget movie in a year, this one starring Robert Downey Jr. , Leighton Meester , Vera Farmiga , Robert Duvall , Vincent D’Onofrio , and Billy Bob Thornton . In “The Judge,” which starts shooting in June, Downey plays a lawyer who returns home for his mother’s funeral and discovers that his father, a small town judge played by Duvall, is suspected of murder. It’s being directed by David Dobkin (“Wedding Crashers,” “The Change-Up”). According to the Greenfield Recorder, producers recently visited Shelburne Falls, chatting up merchants and touring buildings. Last June, Kate Winslet and Josh Brolin filmed “Labor Day,” directed by Jason Reitman , in Shelburne Falls.