In motion picture production, a method of cutting negative or positive film in which the first shot is placed on one roll (the "A" roll) with black or blank leader in the corresponding posit [..]

The negative of an edited film, cut to picture, but built into 2 rolls, A and B, to allow for invisible splices, instant changes of the timing lights, fades and dissolves. A roll will have all the odd [..]

Negative rolls of motion picture film, usually 16 mm, in which the shots are distributed between two rolls to permit special effect on printing (USAID Automated Directives System - ADS - Chapter 502).