I came here to see if someone already mentioned Colossus.

Funny trivia: there are parts of that movie shot in Rome, my city; you can see the Vatican, San Peters, the Orange Garden, the Janiculum and Isola Tiberina, specifically the hospital "Fate bene fratelli", where I was born.

The Americans meet there with Russians, joining forces to stop Colossus, and you can see written on a wall a mirrored "W Lenin".

The writing was actually there before they shot the movie, it was not added on purpose and stayed there until not long ago.

https://i.imgur.com/wIha0mr.png