I guess http://www.imdb.com/help/show_leaf?titlelanguagedisplay might be what you are looking for.
We recently modified the way titles are displayed on the site. Users
will now by default see titles listed in the language used for release
in their country (i.e. US-based users will see films listed under the
title used for the North American release, while users browsing the
site from France will see titles as they appeared on the French
release of those movies etc.)
If you are registered on IMDb.com and you prefer to see original
titles, or the title in any other language/country of release by
default, you can set your user preferences accordingly.
To do this, please click on the 'Your Account' link (located in the
upper right corner of every page on IMDb.com) and then click on the
'Site Preferences' option, or go directly to
https://secure.imdb.com/register-imdb/siteprefs , and then choose the
desired options from the "Title Display Country" and "Title Display
Language" dropdown menus. Click 'OK' to save your choice.
For more help/information, please refer to our site preferences
Please also remember that if you access the site through the following
URL, you will always see films listed under their original titles
regardless of your login status or site preferences: