Nowadays, a whole lot of movies, while still shot on color negative film, are scanned and color corrected, enhanced, muted in the digital realm, then sent to a film recorder which outputs the file back to film to make a master corrected color negative for making prints. With this in mind, just about any effect such as high-contrast, muted color, b/w conversion, etc.,, is possible. In the past, cinematographers would sometimes use (and may still use in certain circumstances) warming or cooling filters over the taking lens, and special lab treatments of camera negative in processing to achieve unique looks.