to show costume and the actor or the surroundings
to show characters from a perspective that makes them seem vulnerable (takes the power away from the character makes them seem helpless)
to show or adds emotion to a scene
to give or establish a scene and give viewers an idea of the environment or to center your audience in the scenes they're about to witness.
low angles shots convey power (makes heroes, villians, or monsters seem strong, taller, or bigger)
gives viewers a sense of equality
to capture sharp images in action, conveying a sense of movement