First published in 1983 with reviews of 720 films, the present edition covers 2,000 science fiction films-mainly feature films, but also some television series. Many of the films date from Hollywood of the 1950s. The reviews vary from short plot summaries to commentaries ten columns in length. Some focus more on the book that provided the basis for the film than on the film itself. The commentaries often refer to other reviews, though the citations are very imprecise.
Factual information given about the films usually includes a listing of the cast.