Glossary

Split screen

Two or more pictures shown at once in the same frame, side by side or one above the other.

Split screen is used to compare (before and after, right and wrong move), to show a reaction, or to show a screen and the person explaining it at the same time.

In vertical video, stack the pictures one above the other: side by side, each half gets too narrow. One subject per half, and a clean dividing line.

A physiotherapist shows the hunched posture at the top and the corrected one at the bottom.