Since I got many questions about where to find Disney movies in Italian, French, and so on, I have made this minimal list of links to web stores. All stores listed here are big companies and therefore likely to be serious businesses. I do not however take any responsibilities for their service and actions.
Unfortunately most sites are in their respective native language only, so a certain degree of knowledge might be necessary.
Chinese: BOL China
Dutch: BOL.com Netherlands
German: BOL.de (Germany) or BOL.ch (Switzerland)
Italian: BOL.com Italy
Japanese: BOL Japan
English (UK)*: Amazon.co.uk
English (UK)*: BOL.com (UK)
English (US)*: Amazon.com
*) If you live inside the European Union (EU), you should choose to use UK stores instead of US ones if possible, since there are no customs fees and taxes added for goods transported between EU countries.