Correct the pronoun-antecedent agreement errors in this passage.
A drone is a flying vehicle with no pilot on board guiding their movements.
Drones are widely used in the film industry because of its ability to maneuver
in tight spaces. You've probably seen footage where the camera follows the
actors from just overhead as they race across a landscape. Most likely, that
scene was shot by a drone. Sally Reynolds, a director of hit films, says that
they can't imagine shooting action scenes without a drone. All of her camera
operators must prove that he or she can operate a drone safely.
