Question: Which of the two people who wrote the screenplay for "Dead & Buried" a 1981 science fiction horror film, also worked as a director, visual effects supervisor, and occasional actor?
Sentence (from "Dead &amp; Buried"): With a screenplay written by Dan O'Bannon and Ronald Shusett, the movie was initially banned as a "video nasty" in the UK in the early 1980s, but was later acquitted of obscenity charges and removed from the Director of Public Prosecutions' list.
Relevant evidence: Yes