Stan, Roger and Jeff meet two members of the Pontificial Swiss Guard speaking in an Italian accent. Actually Pontificial Swiss Guard members have to be Switzerland-born, and almost all of them come from the German and French part of the Country.
In the living room the box labeled 'Lights' is upside down, yet the letters are right-side up.
When Jeff returns to the orphanage--along with Father Donovan, Stan and Roger--a potential character error occurs with Father Donovan. When Father Donovan makes the sign of the cross--though using his left hand--he even so does so partially backwards. "Father" and "Son" motions are accurate. "Holy" and "Spirit" motions are made right to left, whereas to be accurate this would be reversed.