h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

then there is
schedule - in English pronounced shed-yule, and in American sked-yule

many words of greek origin are different in English and American - normally those with Greek double vowel such as paediatrics which in the US is pediatrics. this is one of my favourites as the stem paed- is indicative of children and paediatrics is the medical "children's illnesses". ped- indicates foot however. So the US technically think feet are children or vice versa.

As an American just beginning to exit the "child" stage (I'm almost 18), I can tell you they consider children feet. Or at least treat them like feet, at any rate....

Whereas the American "fetus" is the correct spelling (based on the root language), and we Brits have just stuck in a completely unwarrented "o" to get "foetus".

As for metre/meter:

Metre is the original French spelling, so the Americans...

... have done the right thing and refused to submit to French cultural imperialism.

'Cept for that whole thing about the 'revolutionary war,' sure.

** skips lightly over backlog / backlogue **

Has anyone mentioned encyclopaedia / encyclopedia yet?

Demagog / Demagogue

Program / Programme

Theater / Theatre

Surely 'Theater / Theatre or Cinema'. A pet hate is when they say at the end of trailers 'In Theatres Soon'. No it's not. It'll be in the *cinema* soon. Even 'In Theaters Soon' is better than using the completely wrong English word....

those are both wrong. americans use advice (noun) and advise (verb), and in the us "practice" with a "c" is used for both noun and verb (not with "s").