Is there any differences between UK and US releases?

[galumn]

http://store.steampowered.com/app/19030/?cc=US
http://store.steampowered.com/app/19030/?cc=UK

I always feel uneasy every time I see a country name right after a game title.
I fear that some contents might be cut off or altered, like many games that get release in Germany.

So, I wonder if anyone know whether there are any differences between UK and US version?