The "Klow" restaurant to which Albert goes for dinner with Anna is a tribute to the famous "bande dessinee" (comic book) hero Tintin. The front window, the menu (including the meal's syldavian names), the waiter and the washrooms are all identical to their original version in the book "Tintin et le sceptre d'Ottokar". The position of the waiter listening through the door is the same as Tintin's in the original story. There is at least one other reference to Tintin in the movie: Albert has a miniature replica of Tintin's famous moon rocket on his answering machine.