Pan & Scan
From DigiWiki
Pan & Scan is a video editing technique whereby widescreen movies are turned into full-frame movies by cutting off parts of the left and right of the widescreen picture, and then panning across the cut off areas whenever there is information that need to be shown. Therefore, pan & scan movies tend to have a lot more panning than their widescreen counterparts that was not intended by the director (although some directors work on the pan & scan version of the film themselves).