The cinematography overall is brilliant, which is a hallmark of his movies of course, the most famous examples maybe being 2001, and Barry Lyndon, in which he used astrophotographical lenses to capture scenes lit only by candlelight.
Gil Taylor, Strangelove's DP, was a wartime aerial photographer for the RAF, and went on to shoot Star Wars. [1] Just so many fascinating levels of unique brilliance went into the creation of that film.
The guy was a comic; you'd think his performances would be all pratfalls and punchlines. But he was a good actor.
Spartacus: Swords and sandals.
Paths of Glory: WW1 anti-war.
Strangelove: I don't know what genre that was.
2001: Space opera.
A Clockwork Orange: Dystopian sci-fi.
Barry Lyndon: Picaresque costume drama.
I haven't checked, but I think the gaps between his movie releases roughly doubled with each release.
There are some scenes in these movies that scream "Kubrick". There always seems to be a perspective shot in which the camera is pointing down the centre of some tunnel or corridor. In Paths of Glory it's a trench; in 2001, it's the aisle of the shuttle. It's usually some grand corridor.
There are other top notch performances but I’ve always loved his scenes with Sellers as the RAF officer trying to reason with his madness.
The film is my favorite and George C. Scott deserves a ton of credit too. Slim Pickens is incredible as well. If there’s one character that is a bit over-the-top for me it’s Dr. Strangelove himself. It’s a close call but I wonder if the film could still work without some of the mein furher, involuntarily nazi salute stuff.
That part is funnier if you recognize that the main real life person that Dr Strangelove was a spoof of was Wernher von Braun. (For more insight into the joke, listen to Tom Lehrer's song about Wernher von Braun.)
Also topical, his song about nuclear apocalypse: https://www.youtube.com/watch?v=frAEmhqdLFs
(Still, Kubrick was my fave director. Can't win 'em all.)