Novi Beograd is not a "China town". There are some Chinese people living in Belgrade (and particularly Novi Beograd) but not that many actually.
Edit is not a Serbian female name. There is a female name Edita of Germanic and Hungarian root which is very rare in Serbia.
When Frank is walking Sarah down the aisle, the music playing is the traditional recession music.
Ecka is approx 70 km (45 miles) north of Belgrade (Beograd) and Morava airport is a domestic one located south of Belgrade.
Barajevo and Grocka are located outside of Belgrade, and are not neighborhoods in Belgrade.