Saluting Keaton’s ‘General’

They stole his train. He wants it back. That’s the setup for Buster Keaton’s silent 1927 Civil War-set action-comedy “The General,” presented with a live score courtesy of New West Symphony. Valley Performing Arts Center, 18111 Nordhoff St., Northridge. $28 and up. 8 p.m. Saturday. www.Val leyPerformingArts Center.org