180-degree rule: A screen direction rule that cameramen must adhere to. It states that two characters
in the same scene should always have the same left/right relationship to each other. If the camera passes over the imaginary
line connecting the two it is known as "crossing the line." The new shot from the opposite side is called "reverse angle."
24 Frames Per Second: The standard frame rate or film speed. The number of frames or images displayed
per second.
30-degree rule: A rule that states that a film editor should not cut toward a subject in
a straight line. If a subject is shot at one angle, the next shot must vary at least 30 degrees if
it includes that same subject.
35mm: Format in which the bulk of professional film work is shot.

3-D: A film that has a three-dimensional form/appearance that gives it a lifelike feel. This
3-D effect is usually achieved by viewers wearing red/blue or green lensed glasses. The heyday of the 3-D films was in the
early to mid 1950s. The first 3-D movie was "Power of Love" (1922). The first major 3-D movie was "Bwana Devil" (1953).
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