When you Google a movie, the search result shows where you can watch it (right side of the result).
If you have set your location correct, the result is accurate. Otherwise it's USA based result.
Ahh, I failed to realize that use of Netflix was so specific to a country.
You may be able to easily spoof a USA location by installing a vpn, though.
I've had luck doing this when trying to listen to Pandora while in Mexico - you cant', except I could once I installed Norton vpn and selected a usa location