Ars Technica has an excellent interview with Steven Hayden, former creative lead at advertiser Chiat/Day and one of several people behind Apple's iconic 1984 ad. Hayden sheds some light on the behind the scenes negotiations that went into this advertisement.
It's well known that Apple's board of directors did not like the ad and threatened to fire advertiser Chiat/Day, but, according to Hayden, it was supposedly Steve Wozniak's faith in the project that helped bring it to fruition. Hayden also revealed he had to interview with Scott Ridley's mother in London before the famed director agreed to work on the American commercial. For additional quips like this, check out the rest of Ars Technica's full interview here. It's worth the read.