Trivia: William Shatner's contract for Star Trek IV stipulated that he would only be in that movie if he could direct Star Trek V.
Trivia: The sound effect used for the brig prison bars is the exact same effect used in Predator when you see from the POV of the Predator in thermal mode.
Trivia: This probe which the Klingon ship destroyed is either the Pioneer 10 or 11. This is based on the plaque it carries. The Voyager 1 and 2 spacecraft, launched a few years after the Pioneer spacecraft, had a child on their plaques along with the man and woman.
Trivia: The Vulcan word for Heaven or Eden was Sha Ka Ree, an intentional play on the name Sean Connery, the first actor asked to play the role of Sybok.