The Way It Wasn't

I was looking at Michael Feeney Callan's biography of Robert Redford. It seems to be a sound work, but every now and then I saw something that gave me pause.  For instance, on page 191, Callan explains why Ryan O'Neal didn't star in The Way We Were:

...the script was handed to Streisand and her lover, Ryan O'Neal, who was offered the role of Hubbell.  Around that time, What's Up Doc?, a Streisand-O'Neal comedy, opened and failed and, says [screenwriter Arthur] Laurents, ended the romance between the stars.  Stark and Streisand now began talking about Redford as Hubbell.

What's Up Doc? was one of the biggest hits of 1972.  It's not a Redford movie, so maybe Callan didn't research it closely, but this is still a pretty big mistake.

Here's something else, on pages 248-249, which may not be wrong, but strikes me as odd:

In fifth grade [Redford's son] Jamie wrote a school adaptation of The Iliad; he was offered the lead but, true to his father's perverse nature, chose instead "the bad-ass bastard" Achilles.

I just want to know in what version of The Iliad is Achilles not the lead?