Leader

In general, any strip of blank film attached to image or sound track film and used for equipment threading purposes.  Also, strips of blank, clear, or black film used for spacing purposes in the editing of work prints and the preparation of A & B rolls.

Letterbox

The process of formatting a wide-screen film onto video in which the entire width of the image is visible and there are blank bands above and below the image in order to accommodate the different aspect ratios of wide-screen film and the television screen.  See also Anamorphic, Aspect ratio, Wide-screen film.

Loop

See Film loop, Videocartridge.

See also:

Glossary