Filmmaker Stillman's Next Project: Poverty In Otsego, Delaware By LIBBY CUDMORE • Hometown Oneonta & The Freeman’s Journal Filmmaker Joe Stillman and his producer, Jeri Wachter, set up in Southside Mall earlier this month to begin interviewing people on poverty in Otsego and Delaware counties. (Jim Kevlin/AllOTSEGO.com) ONEONTA – Filmmaker Joe Stillman wants to open people’s eyes to what he calls “The Invisible Class.” “In Otsego County, the poverty rate is 16.5 percent,” he said. “In Oneonta, it’s 29.5 percent.…