Alien. Ridley Scott, 1979.
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Edition screened: 2003 Director’s Cut, included in 20th Century Fox Alien Anthology 6-Blu-ray box set, released 2010. English language. Runtime approximately 117 minutes.
Summary: No particular depictions of violence toward animals.
Bonus points …
Heroine Ellen Ripley (Sigourney Weaver) demonstrates that companion animals must be protected in the face of horror or impending disaster. There always is time to put the cat in his carrier and take him with you. No excuses.
The Alien Blu-ray disc in this box set also contains the original 1979 theatrical cut of the film, approximately 118 minutes.