I didn't like If either. But the whole movie put me off.
Malcolm, a suitable case for treatment, was somehow ok, maybe because of the luminous presence of young Vanessa Redgrave. Now he's the eminence grise who shows up on random tv shows. He doesn't bother me, particularly. A Clockwork Orange was a disturbing movie, but it was meant to be. The book was no picnic, either, especially with its futuristic slang.
Thanks, 8ully, for the Star Trek context. I never really paid a great deal of attention to the subsequent series, so I'm kind of ignorant as to how the various series relate to one another chronologically.
