No big deal perhaps as Cannes is only slightly well-known internationally for hosting an annual film festival and whoever was responsible for the mix-up can be forgiven for his or her error - can't they?
Obviously though the channel isn't content with "small fry" in its attempt to redraw the map of Europe.
It has now turned its attention to a much bigger "fish" - London.
Because in a report last weekend on the latest arrests in the 'phone hacking scandal that have "rocked" (don't you just love that word?) the United Kingdom, some bright spark at CNN managed to move the capital 120 miles to the north-east.
It is, according to the channel, now to be found in the county of Norfolk - right where Norwich used to be.
That's not all.
CNN has also created an entirely new town in the south-west of the country; Cornwall.
That's reassuring isn't it?
Oh well, let's just hope that when it comes to the Summer Olympics the channel manages to get its act together.
On current form though, it doesn't bode well.