Here are two videos with a comedy sketch about British and American English differences.
The premise is Jay (who is American) is attending a meeting where he presents some art work he’s prepared to two British people. Things start going a little crazy when we discover he has misunderstood the instructions he was given.
Along the way your students will learn what a boot and a plonker is in British English, and also pick up some British slang and colloquial phrases like pants, cheers and knock up?
There are two videos in the series. In the first one they test themselves and see if they can spot ten British expressions that cause confusion. In the second one, they see the video again and then get explanations of all the words.
Video one
Video two