GBS once said that Britain and America were two nations separated by a common language. I've listened to a few audio books recently recorded -- nay, performed -- by the mega-talented Susan Ericson and quite a few differences come up.
One that stands out is thorough which she pronounces thurrow but we in Oz pronounce thurrah. Then there's the well-known limerick about the young lady from Boston Mass simply doesn't work with British pronunication.
Can you think of a few words that have different pronunciation (or meaning) in British and American English?