China

I have to admit, my conclusion was premature. Thanks to wist1270 hint and with the help of google translate, I now found out the following:
The Bridge is real. The Scene with a car driving over this Bridge is real, too. It's taken from the following Video:
external link
As you can see in the video, this bridge is floating on the river. Although it is a floating walkway, they have let a car drive over it for promotion purpose.
This floating bridge is located at Shiziguan - Xuan'en county - Enshi Tujia and Miao autonomous prefecture - Hubei province - China
Aerial view: external link
Google maps: external link