ooh...you are aweful (1972)

Unknown.
A pair of Italian hitmen are tasked to protect a conman. In one scene they wait, one cuddling a cat, which they use to distract a passing milkman with.

the postman always rings twice (1946)

Unknown.
A couple plan to murder her husband, whilst having an affair, but the is plan spoilt when a cat gets involved. Unfortunately its curiousity gets the better of it and it shorts out the electricity by jumping on the electrical points. Cue one frazzled cat. "Cats are poor dumb things" comments a local policeman knowingly.

house of a thousand dolls (1967)

Unknown.
An American doctor gets mixed up in murder and white slavery. Whilst questioning a photographer, his cat protests at the disturbance. So a detective comforts it.