 In some English language subtitled (mainly American) versions the reference  to the character of Saids friend who lives in the "posh towers" is Snoopy.  However, the untranslated dialogue says Asterix and the woman who Vinz  speaks to on the intercom laughs and says No, but his friend Obelix is  here, whereas the translated version says No, but his friend Charlie Brown  is.. The reason Asterix and Obelix were changed to Snoopy and Charlie Brown  in the subtitled version was because a lot of people are more familiar with  those characters and possibly wouldnt understand the joke relating to  Asterix and Obelix, which are two best friends in various French cartoon  books by Goscinny & Uderzo.