★★★☆☆

150 min | PG-13 | May 5, 2023 | Walt Disney Studios Motion Pictures

The Guardians are barely holding together when an attack leaves Rocket dying with a kill switch buried in his body. Saving him means digging up where he came from, and where he came from is a nightmare. The trilogy that ran on needle drops and banter ends by making you look at the wound underneath.

The Guardians live on a space station called Knowhere. They drink and fight and avoid the wreckage of their own histories. Then Rocket gets hurt, and his body holds a kill switch that no one can disable without knowing where he came from. The film turns into a rescue mission that doubles as an excavation of one character’s origin. James Gunn structures the whole thing around a question the earlier films refused to ask. What did it take to build the raccoon.

Bradley Cooper voices Rocket as a creature who has spent his life weaponizing his own pain. The flashbacks strip the sarcasm away and leave something raw. Chris Pratt plays Peter Quill as a man drinking through grief, still wrecked by a Gamora who no longer remembers loving him. Zoe Saldaña plays that Gamora as a stranger wearing a familiar face, and she refuses every cue the movie sets up for a reconciliation. Dave Bautista gives Drax a gentleness underneath the literal-minded jokes. Karen Gillan lets Nebula soften without losing the hardware, and Pom Klementieff makes Mantis the only one willing to say the obvious thing out loud.

Gunn writes and directs, and he commits to the cruelty the premise demands. The flashback laboratory sequences play as horror, with rows of caged animals rebuilt into machines and an antagonist who calls his torture a path to perfection. The camera moves in long unbroken takes, including a corridor fight that tracks the whole team through a single roving shot. The needle-drop soundtrack carries its usual weight, and Gunn drops a folk-rock anthem under the climax to turn spectacle into catharsis. The production design splits the world between candy-colored organic settlements and clinical white labs, and the contrast does emotional work that the dialogue never has to.

This is the rare blockbuster trilogy capper that gets quieter as it gets bigger. The plot is thin and the pacing sags in the middle stretch, where the film stalls between set pieces and recaps its own emotions. None of that erases the core. Gunn built three movies around the idea that damaged people can choose each other, and here he pays it off by showing exactly how the damage was done. The film earns its goodbyes because it never pretends the wounds were cheap.