I’m much of my way through reading Space Odyssey by Michael Benson, which was released this year in time for the 50th anniversary of 2001. The book is subtitled “Stanley Kubrick, Arthur C. Clarke, and the Making of a Masterpiece.”

The book doesn’t pretend to be a biography of either Kubrick or Clarke, but a tale of creating the movie, beginning with the extended deliberations by Kubrick about what to do after Dr. Strangelove and the critical ideas Clarke contributed to the genesis and eventual shape of the movie, and taking the story through production, post-production and release, all of which were behind schedule and over budget.

Both Kubrick and Clarke come across as towering intellects, which no doubt they were, but with certain flaws. If he thought it was good for the end product, Kubrick was perfectly willing to take advantage of Clarke or put his actors in danger on the set. For his part, Clarke couldn’t stand up to Kubrick, or say no to a money-sucking leech of a lover, though eventually his association with the project made him wealthy indeed (indirectly, because he had no points in the movie itself).

Since movie-making is such a collaborative effort, a lot of other contributors to the ultimate outcome make appearances in the book. Each is fascinating in his own way, such as the very young man who shot highly kinetic scenes from a helicopter over Scotland, for part of the Star Gate sequence; the mime who choreographed the movements for — and played — the lead ape-man in the Dawn of Man sequence; the designer who built the astonishing centrifuge set; or the stuntman who did the incredibly risky shots of astronaut Poole floating in space.

Perhaps the most astonishing thing about the movie that the book makes clear is how much of 2001 — a multimillion-dollar project with a large staff — was essentially made up on the fly by Kubrick. A fair number of bad ideas were winnowed out along the way, and good ideas came from various and unexpected sources, all of which the director wasn’t shy about using.

I’ve gotten to the chapter that describes the filming of the Dawn of Man. Reading about that process in detail reminds me of the reaction to the movie by someone I recommended it to years ago (in college in fact). He wasn’t impressed by 2001 or its mystique. Afterward, one of the things he asked me was, “What were those damned monkeys doing?”