The X from Outer Space (Uchu daikaijû Girara). Kazui Nihonmatsu, 1967.
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Edition screened: Included in Criterion Eclipse Series 37: When Horror Came to Shochiku 4-DVD set, released 2012. Japanese language with English subtitles. Runtime approximately 78 minutes.
Summary: No particular depictions of violence toward animals.
Beginning at 45:00, the entire last half of the film is a military strike against a space creature that essentially is a giant rubber chicken, albeit a blue one. The action could be seen as suspenseful or comedic, but not cruel.