Pan & Scan
The method that has mostly replaced cropping and squeezing is panning and scanning. In this process, a video technician views the movie with its original aspect ratio and decides which television-sized chunk of the movie to show at any one time. Usually, this means focusing on the elements of the picture that are most important to the plot, which is obviously a subjective decision. If you have two characters at either end of a widescreen shot, for example, the pan-and-scan operator must decide which one to show. The operator will probably show the one that is talking, or performing the more conspicuous action. A careful pan-and-scan operator will try to represent the different important aspects of a shot by "cutting" between the two halves of the screen, so that what was originally one shot becomes multiple shots. The operator can also create a pan from one side of the picture to another (hence the name of the process).