Also known as '16:9 enhanced' or 'widescreen enhanced'. This means stretching a picture out of shape, making the images tall and skinny. Many widescreen movies have been filmed on standard Academy aspect ratio cameras and film stock. This can be done either by wasting a lot of film between each frame, or making use of the full frame by using an anamorphic lens to horizontally squeeze the picture together. If a single frame is looked at, the characters will be as mentioned. When the film is shown, a reverse form of the anamorphic lens widens the picture again so that everything appears as it should. On DVDs an anamorphic widescreen picture is encoded to use all the vertical lines of resolution available (576 for PAL and 480 for NTSC). When played back on a widescreen TV it is horizontally stretched so that the picture contents are shaped normally, but with the benefit of DVD's full resolution. If played back on a 4:3 TV (that does not have a widescreen mode), the DVD player's set up menu must be told so that the DVD player can convert the anamorphic picture to a letterboxed picture for the TV.