The Astronaut

The Astronaut (2025) is a science-fiction horror thriller written and directed by Jess Varley in her solo feature debut. Captain Sam Walker (Kate Mara) has just completed her first mission into space when the return goes catastrophically wrong: her capsule is punctured during descent and recovered floating far off the coast of the Atlantic, with Sam found improbably alive inside, her helmet broken open.

Rather than a hero's welcome, Sam gets containment. General William Harris (Laurence Fishburne) arranges for her to be sequestered in a high-security house under intense NASA surveillance for rehabilitation and medical testing — an isolation meant to protect her, or possibly to protect everyone else from her. The rehab is supposed to be routine. It isn't.

As unexplained events begin accumulating around the property — noises, presences, things that shouldn't be there — Sam becomes convinced that whatever breached her capsule did not stay in orbit. The film spends its first half as a chamber-piece paranoia thriller, hemmed in by locked doors and monitored rooms, before opening out into something far stranger. Varley, working with cinematographer David Garbett and producer Brad Fuller (A Quiet Place, The Purge), keeps the scale small and the dread domestic: the horror is not out among the stars but inside a quiet house, and inside a body that used to be familiar.

At its center, The Astronaut is about re-entry — the impossibility of coming back unchanged from something enormous. Varley uses the machinery of alien-invasion horror to stage a much more intimate crisis: a woman who left her family to chase the sky and returns as someone her husband, her daughter, and her own government can no longer identify.

The film argues that identity is not a fixed possession but a negotiation between the body, the people who love you, and the institutions that classify you. Sam is monitored, measured, and quarantined precisely because nobody — including Sam — can answer the question what are you now? The escalating body-horror of the final act literalizes what the first act only whispers: that the person who came home is not the person who left.

Its final gesture is the most telling. Faced with an answer about her own nature, Sam is asked to choose between the family she built and the truth of what she is. That the film treats this as a farewell rather than a triumph is its real message: some homecomings are actually departures, and love does not always survive knowledge.

The literal reading. Sam really was replaced, altered or revealed — an extraterrestrial being wearing a human life, whose disguise expires. Her deterioration is biology, and the ship at the end is a genuine extraction by her own kind. This is the reading the film's imagery most directly supports.

The Astronaut arrived in a crowded moment for intimate, low-budget space horror — a lineage running from Alien's body-invasion dread through contained-astronaut pictures and the paranoid quarantine thrillers that proliferated after 2020. Producer Brad Fuller's involvement places it squarely in the modern Platinum Dunes-adjacent tradition of high-concept genre filmmaking built around a single premise and a small cast, the same commercial logic behind A Quiet Place and The Purge.

Its reception was mixed. On Rotten Tomatoes the film holds a 38% Tomatometer from 26 critics against a 49% Popcornmeter audience score from 250+ ratings. RogerEbert.com judged it "not exactly teeming with originality, but for at least its first half... certainly watchable," faulting a twist that is "not nearly the game-changer it claims to be." The Hollywood Reporter called it an uneven sci-fi thriller. Others were more forgiving of its final act: MovieWeb argued it was "almost worth it for its wild ending," and the climax has been described as gleefully bananas if taken in the right spirit.

Its most durable cultural footnote is likely institutional rather than aesthetic: an Ireland-shot American genre film, launched at SXSW, that marked the arrival of a new writer-director. Varley's authenticity push — consulting a NASA astronaut and a record-holding ISS veteran — situates the film in the post-Gravity/The Martian expectation that even a horror movie should get the hardware right before it gets weird.

Overall verdict: divisive, with audiences somewhat warmer than critics. The film sits at 38% on the Rotten Tomatoes Tomatometer (26 critic reviews) and 49% on the audience Popcornmeter (250+ ratings) — a split that captures a movie people find effective in the moment and unsatisfying in retrospect.

Praised: Kate Mara's performance is the near-universal point of agreement; reviewers noted she sells the chills and carries the film's isolation almost single-handedly. The first half draws consistent credit for its taut, nerve-wracking atmosphere of confinement, and Laurence Fishburne's authority adds weight to the institutional scenes. Varley's commitment to procedural authenticity, backed by NASA consultants, was also noted approvingly.

Criticized: the twist. RogerEbert.com found the film watchable but ultimately building to a "would-be shocking twist that is not nearly the game-changer it claims to be," leaving viewers with more questions than answers; The Hollywood Reporter called the whole an uneven sci-fi thriller, and other outlets described it as creepy but disappointing. Lack of originality in the premise is a recurring complaint, as is the tonal swerve when the contained paranoia thriller gives way to a consideration of family.

Most controversial element: the finale, which some viewers found absolutely bananas in the best way — MovieWeb suggested the film was "almost worth it for its wild ending" — while others felt it invalidated the disciplined build-up. Where you land on that swing largely determines your opinion of the film.