Question: Who employs a documentary-style, hand-held, cinéma vérité technique, blending naturalistic and photo-realistic computer-generated effects, Don Chaffey or Neill Blomkamp? 
Sentence (from "Don Chaffey"): Donald Chaffey (5 August 1917 – 13 November 1990) was a British film director, writer, producer, and art director.
Relevant evidence: Yes