Spelling Differences
"We apologise for the error in last week's paper in which we stated that Mr. Arnold Dogbody was a defective in the police force.  We meant, of course, that Mr. Dogbody is a detective in the police farce."


--Correction Notice in The Ely Standard, British Newspaper
A Few Thoughts on Spelling...
"Spelling may vary slightly among English-speaking countries.  This can prove particularly confusing for ESL students.  Following is a list of common words spelled differently in American and British English.  Consult a dictionary for others."
Click to see examples
Source:

Hacker, Diana. 
The Bedford Handbook for Writers.  3rd ed.  Boston:  Bedford, 1991.