Alex Gibney's Musk runs nearly four hours with a 10-minute intermission, and the Ars Technica reviewer says it covers a lot of well-known ground. The real question is not whether the film is good. It is whether it tells you anything a decade of headlines has not already taught you.
One caveat first: this blog has not seen the film. Everything here rests on a single published review from Ars Technica, which calls the film compelling but overlong (Ars Technica review). Treat what follows as a decision aid built on that review, not a second verdict.
Two films in one sitting
The review's central point is structural. The first half covers Musk's early entrepreneurial years, mixing archival footage with the usual talking heads. It also touches on what little is known about his family background. The reviewer says it reminds viewers of who Musk used to be, and admits to missing that earlier public version.
The second half shifts to the period after the Twitter purchase and Musk's embrace of Trump. The review calls the tone markedly more adversarial and says there is little doubt where Gibney stands. That fits the review's note that Gibney rejects the journalistic "view from nowhere" and that his documentaries usually carry a strong point of view.
The seam may have a cause. According to the review, Gibney said at a post-screening Q&A that he had finished the film in 2024. HBO then asked him to keep going to document Musk's "heel turn." The reviewer assumes Gibney recut the first half along the way, which could explain the two-film feel.
The same process is how the runtime grew to nearly four hours. Gibney joked that it could have stretched to six, and the reviewer suggests a six-episode miniseries might have worked better.
Three stated limits matter for your decision:
- The AI stand-in is weak. Musk declined to be interviewed, so Gibney built an AI version of him that speaks verbatim public quotes. The reviewer finds the idea apt but the execution "creepy uncanny valley stuff," and far less interesting than real archival footage.
- The portrait is incomplete. The review says the film presents Musk as a tragic anti-hero as much as a con artist: an idealist corrupted by wealth and power, in what Gibney calls "noble cause corruption." But the film sheds little light on why he ended up on such a dark path.
- The ground is familiar. The film covers Tesla and the fatalities linked to its driver-assistance systems, SpaceX, Starlink, Twitter, Grok, DOGE, and his children. The review opens by noting that Ars readers already know much of this.
Who should go, and who should skip
The table ties each viewer type to a specific point in the review. The "fit" column is my inference from that evidence, not a tested result.
| Viewer | Fit | Review point it rests on | |---|---|---| | Knows Musk mostly from headlines | Strong | The film covers the major episodes in one place, from Tesla and SpaceX to Twitter, Grok and DOGE | | Gibney fan | Strong | Gibney has a strong point of view and a long record of documentaries on figures like Steve Jobs and Elizabeth Holmes, and the review calls the film "exceptionally well-done" | | Wants the early-years material | Strong | The first half blends archival footage with interviews and offers some family background | | Tech-savvy reader who follows Musk news daily | Weak to moderate | The review says the film covers a lot of well-known ground | | Wants an explanation of why Musk changed | Weak | The review says the film sheds little light on why he took a darker path | | Wants a neutral, both-sides account | Weak | The review describes the second half as markedly more adversarial | | Hoping the AI Musk adds something | Weak | The reviewer calls the avatar uncanny and less compelling than real footage |
A worked example
These viewers are illustrations, not real people.
The casual viewer knows Musk from social media clips and a few news cycles. For this person, the familiar-ground complaint barely applies, because the ground is new to them. They get the early years and the later controversies in one sitting.
Recommendation: watch now, ideally in a theater with the intermission. Expect a deliberate point of view in the second half.
The well-informed tech reader follows Musk news closely and already knows the Tesla, Starlink, Twitter and Grok stories. Much of the second half will likely be a recap, and the review says the film offers little on why Musk changed.
Recommendation: wait. If curiosity still pulls, the first half is the likelier payoff. It is where the reviewer found the family background and the archival look at Musk's earlier public image.
A Gibney completist should probably go regardless of how much they know. The draw is the filmmaker's treatment, not the facts.
What this verdict rests on
This guidance draws on one review, not on a viewing of the film. The Q&A remarks and runtime details come only from that review.
The Ars review does not give a streaming date or say where the film will be available after its theatrical run, so this post makes no claim about waiting for a home release. The review does say Musk is in select theaters in New York and Los Angeles now and opens broadly across the US on October 14, 2026.
A film that plays like two films asks you to decide which one you want. If you know the story cold, the intermission is a natural checkpoint for deciding whether to stay.
Next action: check your local showtimes and note when the 10-minute intermission falls before you buy a ticket.
