“Given a relatively free hand,” writes Andrew Yule in The Man Who “Framed” the Beatles: A Biography of Richard Lester, “Lester decided to move the emphasis of III towards social realism, setting the first scene in an unemployment office and hiring the most naturalistic actor he could find — Richard Pryor — for a key role, all in an attempt to anchor the subject to a base of reality and reduce the mythic element he felt had already been thoroughly explored.”
Which just goes to show how wrong a person can be in a single sentence. If Yule had bothered to watch more than the first scene of Superman III before he started typing about it, he would have seen that the “social realism” of Richard Pryor in an unemployment office is immediately followed by five minutes of the most tedious fluff ever committed to celluloid.
One thing that occurs to me, as I look at this opening credits sequence, is that between the director, the writers and the executive producer, the number of successful films that they made subsequent to Superman III is zero. That seems to help, somehow.