text: There are two major differences between the plot of the novel and the film, the first being that the crisis in the novel is started by a deliberate Soviet attack to counter the US military buildup with which they are unable to compete. The other major difference in the film is the romantic subplot between Moreau and Cassidy, which is absent in the book; the characters there actually ridicule the idea of such a relationship between them.
  Reception
  Contemporary reviews of By Dawn's Early Light centered on the confrontation by nuclear powers and gave it accolades. "There never has been a made-for-cable movie as sleek and efficient as By Dawn's Early Light. Fast-moving, complex, and only occasionally a bit hokey, it's by far the best original movie project HBO has overseen." "Boasting high production values, okay special effects, and a surprisingly top-notch cast... a thrilling drama that is your better-than-average made-for-TV movie." More recent reviews were similar: "Probably the end of the line for Cold War confrontation on this scale, but compelling drama nonetheless."
  Awards and honors
  In 1990, James Earl Jones was nominated for an Emmy for Outstanding Supporting Actor in a Miniseries or a Special and Matte World Digital won for Outstanding Achievement in Special Visual Effects.
  In addition, Martin Landau was nominated for the 1991 Cable Ace award for Best Supporting Actor in a Movie or Miniseries, but lost to his co-star from this film, James Earl Jones who won for Heat Wave.