Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb (1964)
Not a Kubrick fan at all, but this one is too good to pass up. Peter Sellers on top of his game, which in my opinion proves his status as the greatest comedic actor of all time. All the sexual tension mirrored with the nuclear fear of the time plays very well. I’m hard pressed to find a funnier film.