UK and US, "Britain and America . . . two great nations divided by the same language," observed once Sir Winston Churchill. Similarly, Oscar Wilde elaborated, "We have really everything in common with America nowadays, except, of course, language." Yes, both of them were joking about our language differences, in reality only minor and insignificant, between the British English and American English.
American take on the same has never been so brilliant as in 1955 Meeting the Queen episode of the famous "I Love Lucy Show." Lucy and Ethel, standing in front of the Buckingham Palace, are trying unsuccessfully to understand Cockney accent of a mumbly Londoner. Ethel, "Sir, you have to pardon us, we're Americans. We don't understand English!" Lucy, "Could you perhaps talk just a bit slower?"
A good news for all Englishmen and New Englanders: No other speech in the USA is as close to British English as the New England's American English. You are going to "Pa[r]k the ca[r] in Ha[r]va[r]d Ya[r]d" only in Massachusetts! And now, after we have established the common ground, the English language, between England and New England, we may move to more important issues, such as . . . photography!