The brain gives abstract meaning to many different shapes in a consistent way and filmmakers use this phenomenon to tell their story. In animation, for example, evil characters have sharper features, pointy noses and long curly fingers. The lovable characters are designed soft and round.
In film, a collection of vertical and horizontal lines can indicate a character is trapped or held prisoner in their current lifestyle. Triangles can emphasize power dynamics, linear framing can show physical separation and straight lines are used to guide your eyesight.
Now You See It has come up with a nice video that explains how cinematographers and directors create shapes inside the frame to add visual storytelling to their films. Check it out below.
Source: Digital Synopsis