The term memoir is a misnomer. It's more a background history of the Star Trek movies. Shatner and Kreski have spent far too much time delving into the backroom fighting and creative disagreements, and not enough time reminiscing. As a useful study on what actually goes into the making of individual episodes of a major motion picture franchise, this book surely has few equals, and I hope it appears on the shelves of all important film schools. It has indeed been well researched. But really that should be a book with Kreski's name alone on it.
Surely what we want from William Shatner, actor, director and Star Trek star, is more a true memoir of his own personal relationships with the other members of the cast (good or bad), and to recall some of the laughter as well as the tears that took place while they were filming. The most we get of this is the tale of how the only two of the original cast to join Shatner in "Star Trek Generations" were his two greatest critics, Walter Koenig and James Doohan, and how Shatner, attempting to rebuild bridges, eventually persuaded them to pose for a photo, all holding hands. Koenig remarked that "a photo of the three of *us* holding hands must be worth at least $500, fifteen hundred if it was signed." Apart from that and one story from George Takei about being referred to as "Tiny" in Star Trek III, the rest is all about Harve Bennett, Nicholas Meyer, Leonard Nimoy (with his director and producer hat on) and (via memo) Gene Roddenberry, all of whom ended on very bad terms with each other. As to the cast, Nichelle Nicholls scarcely features at all, and neither does De Forest Kelley.
"Star Trek Memories", this book's predecessor, managed a better mix of stories from behind and in front of the camera, although in fairness there is already an inherent romanticism about the 1960s television industry which was to that book's advantage. "Movie Memories" generally leaves one with a nasty taste in the mouth.