Lance Hammer is going solo, of sorts, with his 2008 Sundance stunner “Ballast.” The producer-director-writer, whose powerful debut wowed critics at January’s prestigious Park City festival and won prizes for best director and cinematography, pulled out of a distribution deal with IFC Films in order to retain rights to the movie himself. Now the film’s production entity, Alluvial Film Company, along with Steven Raphael‘s Required Viewing, will release “Ballast” at New York’s Film Forum on October 1, followed by a national rollout.