The crews of the Enterprise and the Excelsior must stop a plot to prevent a peace treaty between the Klingon Empire and the Federation.
Star Trek VI: The Undiscovered Country
That would Star Trek VI: The Undiscovered Country.
Star Trek: the Motion Picture Star Trek: The Wrath of Khan Star Trek: The Search For Spock Star Trek: The Voyage Home Star Trek: the Final Frontier Star Trek: The Undiscovered Country Star Trek: The Captain's Summit That's all the movies in order.
It is actually spelled Khitomer. It is a Klingon planet and the site of the peace treaty between the Federation and the Klingons in Star Trek IV: The Undiscovered Country.
Star Trek VI: The Undiscovered Country
You will find that Kirk, Spock, and the Klingons appear in various Star Trek movies. An example will be: Star Trek: The Undiscovered Country.
In order Star Trek: The Motion Picture Star Trek: The Wrath of Kahn Star Trek: The Search for Spock Star Trek: The Voyage Home Star Trek: The Final Frontier Star Trek: The Undiscovered Country Star Trek: Generations Star Trek: First Contact Star Trek: Insurrection Star Trek: Nemesis Star Trek (plain and simple Star Trek)
No, but he was in Star Trek VI: The Undiscovered Country. In it, Michael Dorn played "Colonel Worf", believed to be the grandfather of the Worf character he played on Star Trek: The Next Generation and Star Trek: Deep Space Nine.
He was Kirk and McCoy's Klingon defense lawyer in The Undiscovered Country.
Yes he has been in the following: Star Trek: The Motion Picture, Star Trek: The Wrath of Kahn, Star Trek: The Search for Spock, Star Trek: The Voyage Home, Star Trek: The Final Frontier, Star Trek: The Undiscovered Country, Star Trek: Generations.
The most recent to star William Shatner as Captain Kirk was Star Trek VI. Although William Shatner appeared in Star Trek VII he was officially retired and had been declared dead years earlier so his rank technically no longer applied.
The ones where it's the original series characters... The Motion Picture The Wrath Of Khan The Search For Spock The Voyage Home The Final Frontier The Undiscovered Country Star Trek XI (2009) The rest are Star Trek Next Generation characters.