Tech executive and entrepreneur Norman Kline is on a mission to elevate the complex history and "coolness factor" of his Silicon Valley hometown. His medium of choice? Not a flashy website or social media campaign. Try documentary. Kline — a native of San Jose who worked for Apple Inc. and Lockheed Martin before founding library automation company LibraryWorld — last month launched a startup film studio called Norman Kline Productions Inc. While San Jose sometimes gets a bad rap as a bland…