Film is perhaps the most technological of artforms, and it relies increasingly on computers for its simulations of the real world. Not surprisingly, films have also expressed concern over the directions in which our technology is taking us, and these days, as spyware snoops around our hard drives and governments assume more powers unto themselves, the issue that crops up repeatedly in films is that of control. Who has it? Who uses it? And to what degree have the devices we created to serve us become our masters?