the postman always rings twice (1981)

Unknown.
Re-make about a steamy affair and the participants drift into murder. Lightened up when Jessica Lang pauses long enough to feed her pet cat. Unfortunately it doesn't end well for the cat, as it decides to tamper with a fuse box, with predictable results.

the naked gun 2½: the smell of fear (1991)

Muffy.
Jane (Pricilla Presley) owns many pets, including Muffy the cat, who pops in for a cameo, and a snack during one scene.

locusts (1974)

Unknown.
A gruff farmer confides in his farm cat, that 'everything is going to be alright', when his son returns home from the war in disgrace. But as this is a disaster movie you know that this is just wishful thinking.