Oxygen (2021), directed by Alexandre Aja, is a gripping French sci-fi thriller that masterfully blends claustrophobic tension with profound existential questions. The film stars Mélanie Laurent as Elizabeth Hansen, a woman who regains consciousness in a high-tech cryogenic pod with no memory of her identity or how she arrived there. Panic sets in as she discovers her oxygen supply is rapidly depleting, and she must race against time to piece together her past with the help of an AI named MILO (voiced by Mathieu Amalric) to escape her metallic tomb.

Mélanie Laurent delivers a tour-de-force performance, carrying the entire film largely solo within the confined space, conveying raw fear, determination, and vulnerability. Alexandre Aja's direction is taut and inventive, using sleek visuals and a pulsating score to amplify the suspense. The plot unfolds through clever twists, exploring themes of identity, memory, and humanity's relationship with technology, culminating in a thought-provoking revelation.

Viewers should watch Oxygen for its intense, edge-of-your-seat narrative and intellectual depth. It's a standout in the confined thriller genre, offering both heart-pounding moments and emotional resonance, making it a must-see for fans of smart, character-driven science fiction.