Christopher Nolan's pandemic-era spy thriller. The 'inverted entropy' premise that audiences argued about for two years.
The Protagonist (the lead character has no name in the film) is a CIA officer who survives a Kyiv opera-house operation. He is recruited into a secret organisation called Tenet that operates against an existential future threat: 'inverted' weapons travelling backwards through time, sent by future humans who blame the present generation for ecological collapse. The Protagonist's contact, Neil, becomes his partner across the operation.
The film tracks the Protagonist and Neil across approximately a week as they pursue a Russian arms dealer named Andrei Sator, who is the future's chosen agent to deliver a device that will trigger reverse-entropy across the entire universe. The climactic operation in Stalsk-12 occurs simultaneously across two timelines — one moving forward, one moving backward through the same ten minutes. The film closes with the Protagonist understanding that Neil's mission was, structurally, his own ending — Neil has been recruited from the future by an older version of the Protagonist himself.
Tenet is, in some sense, Christopher Nolan's most concentrated film. The interest in time as physical material (developed across Memento, Inception, Interstellar, Dunkirk) reaches its most-extreme expression. The action choreography (the inverted-direction fight sequences, the freeway chase with vehicles travelling both directions in time, the climactic two-timeline assault) pushes the constraints of physical action filmmaking further than any of his previous work. The dialogue is dense to the point of opacity.
What this gives the film is a kind of structural purity. Tenet is doing what Nolan is most interested in doing, with minimal concession to broader audience accessibility. The downside is that the film is genuinely difficult to follow on first viewing. The Protagonist's name not being given, the plot's central premise being explained obliquely, the action sequences working at two temporal directions simultaneously — all are deliberate choices that demand the audience work harder than most blockbuster cinema requires.
Tenet was the first major Hollywood release of the COVID-19 pandemic. Warner Bros. delayed the film from July to August 2020, then committed to a theatrical release at a moment when most American cinemas were either closed or operating at significantly reduced capacity. The film's commercial performance ($365m worldwide on a $200m budget) was, structurally, a test case for whether theatrical cinema could survive the pandemic.
The test results were inconclusive. Tenet underperformed pre-pandemic projections; the theatrical infrastructure was, by late 2020, demonstrably broken. Warner Bros.'s subsequent decision to release its entire 2021 slate day-and-date on HBO Max was, in some sense, a consequence of Tenet's release struggle. The film is now widely regarded as the cinema-industry inflection point — the last attempt to operate the pre-pandemic theatrical model before the industry's structural restructuring began.
The film's most-discussed single sequence is the Tallinn freeway chase, in which the Protagonist (moving forward in time) pursues Sator's convoy while another team (moving backward in time) intervenes in the same chase. The sequence runs roughly twelve minutes. It was shot on actual closed-down Tallinn freeway, with real BMWs and trucks performing real stunts at high speeds.
What makes the sequence genuinely innovative is the structural insistence that both temporal directions are operating in the same physical space. A vehicle exploding in one direction is, from the other team's perspective, a vehicle reassembling from debris. The choreography required, in practice, shooting the sequence twice — once with the forward-moving team driving forward through it, once with the backward-moving team driving backward through the same action — and assembling the two together. The technical achievement is significant; whether the dramatic stakes are clear enough for audiences to follow the action remains contested.