I’m intrigued by Half-Remembered Stories, a multimedia exhibit exploring Jewish heritage that’s launching in partnership between local production company Citizen Film and the SF Jewish Film Festival. The latter is turning 30 this year and celebrating by presenting 50 shorts and 11 multimedia collages by artists 15 to 25 years old around “half-remembered” aspects of their cultural history. Think a Zombie day of Antonement, a great-grandmother’s infidelities, and time travel with a Moroccan sage and you’ll get some insight into Saturday afternoon’s programming at the Castro Theatre.