Shatner had a number of good roles in films. He played Alexei in “The Brothers Karamazov” opposite Yul Brynner; also, he played Spencer Tracy’s aide in “Judgment at Nuremberg; and he was the priest in “Seven Samurai”. I may be one of the few people who liked “Incubus”, curse or no.
The Intruder, 1962, was a good film that he was the lead in.
Here is his entire list. http://www.imdb.com/name/nm0000638/filmoyear