Rent foreign language films in iTunes
Short (and only) answer: No, you cannot rent or buy movies in other languages. I share the same problem in Spain, movies are dubbed in spanish.
Matrix sounds hilarious in spanish, trust me.
There's no way to change that. The only solution is -like you've said- switch to the US Store, but that requires billing address changes and all the hurdles involved in that.
If you find someone who can provide you a foreign gift card from your desired country, you can use it to create an account and purchase from the store of that country.