The in "open matte" refers to a version of the film that displays more vertical image information than the standard theatrical 2.39:1 widescreen release. While the official home media releases, such as the Director's Cut Blu-ray , typically use a 2.40:1 aspect ratio, open matte versions often appear via HDTV broadcasts or specific fan-made restorations. Technical Overview
In the 1080p Open Matte version (often distributed via specific broadcast or digital channels, and typically closer to a 1.78:1 or 1.33:1 ratio), the viewer sees more picture information at the top and bottom of the frame. This can be beneficial for: watchmen 2009 directors cut open matte 1080 top
