innocent sinners (1958)

Unknown a young Girl creates a garden on some derelict land, and is told to keep the cats off it, so diligently shoo's a tenacious cat away. But the cat doesn't learn and is soon back, when she throws a piece of rubble at it. Maybe she had planted catnip!

summertime (1955)

Unknown
An American is soaking up the atmosphere of Venice, and can often see cats wandering the streets before two grey cat get special attention whilst watching the world of Venice go by.

i believe in you (1952)

Bertie
Calico cat, that is introduced to the probation officer by his owner as she accuses the neighbours of trying to poison it!

constantine (2005)

Duck
A woman awakes from a bad dream with a Russian Blue cat sat watching her on the bed. We later see the cat again as she feeds it and find out it is her sisters cat. Constantine then uses the cat as a conduit to Hell, before it makes a hasty getaway.

battleship potemkin (1925)

Unknown
Two men fish off the dock whilst a white cat sits casually cleaning itself.

dr. goldfoot and the bikini machine (1965)

Rasputin
A spy is checking out a funeral parlor and finds a black cat is lying in front of a display coffin. He hides as a henchman enters, tells the cat 'I’ll feed you later, Rasputin' and climbs into the coffin. Intrigued the spy goes to look, promptly stepping on poor Rasputin's tail!

national lampoon’s animal house (1978)

Unknown
A Siamese cat hangs out with a chill teacher and some of his students.

whilst hardly noticed a black cat is also lapping up the attention on a students lap.