[User 55003]

No probs, it was a quick fix and I have had a bit more time to look at it. As the script provides the movieid, I think it would be better to use 'VideoLibrary.GetMovieDetails'.
The way it is now it would get confused if two movies were named the same, so I made some adjustments.

code..

PHP Code:

elif actionstring == "sorttitle" :
            json_request = xbmc.executeJSONRPC('{"jsonrpc": "2.0", "id": 1, "method": "VideoLibrary.GetMovieDetails", "params": {"properties": ["sorttitle"], "movieid": %s }}' % self.DBID)
            json_request = unicode(json_request, 'utf-8', errors='ignore')
            json_response = json.loads(json_request)
            if json_response.has_key('result') and (json_response['result'] != None) and json_response['result'].has_key('moviedetails'):
                sort_title = str(json_response['result']['moviedetails']['sorttitle'])
            if sort_title == "":
                self._edit_db_string(xbmc.getInfoLabel('ListItem.Title'),self.TYPE,"sorttitle")
            else:
                self._edit_db_string(sort_title,self.TYPE,"sorttitle") 


here is the adjusted default.py
default_update.zip