After 'Alien: Romulus', fans can stream all the films in the franchise for free and release them on Blu-ray.

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“Alien: Romulus,” the latest installment in the “Alien” franchise, is making waves at the box office and winning over moviegoers and critics alike. Fans can now watch all of the previous films in the franchise via a free streaming offer and a physical Blu-ray release.

The best way to watch all of the "Alien" movies online is through Hulu, which has the entire franchise available to stream online for free for Hulu subscribers. Hulu's on-demand library has every "Alien" movie available to stream, including 2012's "Prometheus" and all of the "Alien vs. Predator" spin-off films.