Being a fan of Mr. Challis' work, I was hoping for more technical revelations on how he realised his imagery on movies like "the Victors". Although certian problems are mentioned, it is more about his interaction with people and the circumstances during the production of most of his films, than specific camera related issues.
It must have been a commercial decision to broaden the potential audience for this tale and it worked;
it is a terrific book, vividly written with a lot of humor!! I'd recommended it to any film-buff with an interest in British Cinema of the 20th Century.