Who owns the photographs taken at our wedding? 

Photographs are copyrighted as soon as they are created.
The photographer owns the photos and reproducing them without permission
is a crime at worst, and bad karma at best. It's stealing. It's also a copyright violation for
your local drug store to print them for you so if you want to reproduce them legally
ask your photographer to provide digital images on a disc and a ''reproduction rights letter''.
This is the right way to go about getting your photos so you can email them,
use them as screen savers etc.