I have a cunning plan: Sneak as many Brits into Hollywood as possible, and have them slip in as many British references into American films as they can. Over time, they'll effectively BECOME British, and Robert's your father's brother!

Just whatever you do, don't mention the taxes! I did once, but I think I got away with it...

Is it as cunning as a fox who’s just been appointed professor of cunning at Oxford university?

I got that last reference. That episode has the funniest exchange in the history of television:

—He keeps talking about the war.

—Well you started it.

—No we didn’t.

—Yes, you did. You invaded Poland!

Wasn't that already attempted once, in the 1950s?

https://en.wikipedia.org/wiki/Good_American_Speech

I do wonder how many americas say “dayta” instead of “darta”, and “fewtile” rather than “fewtill” due to Patrick Stewart’s influence.

I experienced this. I only lived in the U.K. for 6 months, but the number of chiefly British phrases/words/idioms that nestled their way into my way of speaking and stayed (20+ years on) was interesting and somewhat surprising.

For example, I never said "supposed to" again — "meant to" has always sounded and felt so much better. Similarly, "can't be bothered/asked" often exactly describes the situation in a way that "I don't want to" seemingly can't.

I'd also like to add "bum bag" v. "fanny pack" was a valuable lesson and a memorable laugh.