Film Language Tag: mask
1. The black border surrounding a theatrical motion picture screen. The border can be adjusted within certain limits (sides in/out, top and bottom up/down) to accommodate movies with different aspect ratios, making the screen fit the image. 2. A matte that creates an image with a specific shape (such as simulating the view through binoculars) or aspect ratio (such as the image mask in a camera, printer, or projector aperture plate). 3. A matte used in the creation of a composite image. v. 4. To crop an image. 5. To obscure something, such as bleeping out profanity or pixelating nudity in a television broadcast. 6. To obscure another actor unintentionally.