If they’d used Laurence Harvey crazy-eyes ad art in ’62, audiences would have expected some kind of Hammer horror film. Nowadays people understand weirdness…they know that schizo wacko and subdued freak-outs are commonplace among average people, but they wouldn’t have been able to accept this in the JFK era. The only people who had done acid in ’62 were Timothy Leary, Richard Alpert, Cary Grant and a few others.