Another resource for comparing international Blu-ray releases is this site:
http://www.dvdcompare.net/index.php
Here for example is the comparison for Casino on various Blu-rays from around the world:
http://www.dvdcompare.net/comparison....php?fid=14803
My only caveat would be to take their recommendation of which version is superior with a grain of salt. Sometimes they get it right and in other cases they are wrong.