Reconstructions are also often used in documentaries. They are artificial scenes of an event which has been reconstructed and acted out on film based on information of the event. Reconstructions generally provide factual information, and give the viewer a sense of realism, as if the event really happened in front of them live. They often indicate that the footage is not real by using techniques such as blurring, distortion, lighting effects, changes in camera level, and color enhancement within the footage.
Read more about this topic: Documentary Film Techniques