son of dracula (1974)

Sebastian.
Merlin has a cat, who has the ability to transform herself into a human, when needed to show someone to the door. Or be transported to help revive another servant.

humanoids from the deep (1980)

Unknown.
The usual scared cat scares actress routine. In this case a woman goes to feed her dog, and getting no response, approaches the dog kennel, only to be scared when a cat leaps out!

seven blood stained orchids (1972)

Unknown.
A woman feeds her three cats some milk, whilst getting ready for bed. She is alarmed when she then hears them yowling, and returns to the kitchen to see them in distress, poisoned.

withnail and i (1987)

Unknown.
Withnail and Marwood, go to see Uncle Monty, begging to use his country retreat. In between his recalling of his life as a young actor, Monty chases and berates his cat, calling it a thug, and accusing it of being obsessed with its guts! It meanwhile tries to butter up the two new faces, and has a fair turn of speed when pursued.

terrorgram (1988)

Unknown.
"It's a dead cat!" When an exploitation film director is picked up by two female killers, one rips off his chest wig and throws it out of the car she is driving. Finding out that it is worth $1500, she goes to retrieve it, but brings back a dead cat instead. Fortunately for all concerned, it's an obvious fake, looking more like a black Bagpuss than a real cat!

that sinking feeling (1979)

Unknown.
Warehouse cat is put to sleep whilst a gang of teenagers steel some stainless steel sinks. The security guard finds it the next day snoring contentedly.
Incidentally the credits name the cat as Puddy.

the hobbit: the desolation of smaug (2013)

Unknown.
As Bilbo and his gang frequent a tavern, a cat keeps a watchful eye on the proceedings.