Editing Sarek (section)

=== TOS films ===
Mark Lenard portrayed Sarek in movies based on the original ''[[Star Trek: The Original Series|Star Trek]]'' series. In ''[[Star Trek III: The Search for Spock]]'' (1984), Sarek confronts [[James T. Kirk]] at his apartment, thinking that Spock placed his ''[[Katra (Star Trek)|katra]]'', or living essence, into Kirk's mind (since Kirk was the last person to be with the dying Spock), and asking Kirk why he did not return Spock to Vulcan. Unknown to either Sarek or Kirk, Spock had actually placed his ''katra'' in the mind of his friend [[Leonard McCoy]] for safekeeping. Kirk later discovers this through the security tapes during the last moments of Spock's life in his fight to save the ''Enterprise'' from Khan. Sarek asks Kirk to bring Spock's body back along with his ''katra'' to Vulcan; Kirk promises to do so. The Genesis Device regenerates Spock's body and restores his life; Kirk and his crew manage to get Spock off the planet and return him to his home planet of Vulcan. There, Sarek asks the priestess T'Lar to perform a ''fal-tor-pan'', reuniting Spock's mind and body. Sarek thanks Kirk for the rescue of Spock, which took place at the expense of the destruction of the ''Enterprise'' and the death of [[David Marcus (Star Trek)|Kirk's son]]. Kirk admitted if he did not try to save Spock, he would have faced a deeper guilt in his soul.

''[[Star Trek IV: The Voyage Home]]'' (1986) begins with Kirk, Spock, and the rest of the ''Enterprise'' crew still in exile on Vulcan. Sarek travels to Earth to speak on behalf of Kirk (who is facing charges from the [[Klingon Empire]]), and is subsequently trapped on the planet when Earth is threatened by destruction by an alien probe. After Kirk and his crew return and save Earth, and are largely exonerated at their subsequent trial, Sarek has a private audience with his son. Sarek states that he is pleased with Spock, and admits that he was wrong in opposing Spock's induction into Starfleet, praising his comrades as people of good character.

Actor Jonathan Simpson briefly played a younger Sarek during ''[[Star Trek V: The Final Frontier]]'' (1989), with a [[voice-over]] provided by Lenard. The scene is in reference to Spock's birth and Sarek remarking he is "so human."

Mark Lenard's final filmed appearance in the role of Sarek was in ''[[Star Trek VI: The Undiscovered Country]]'' (1991). This film was recorded after, but released before, his last broadcast appearance in ''The Next Generation''. It takes place in the time period of the original series, in the year 2293. Sarek is once again shown as a diplomat participating in the Khitomer Conference, the first diplomatic meeting between the [[Klingon]]s and the Federation.