<human>: Give me a shortened version of the text

Whenever a film or TV show references another film or TV show, does anyone else try and see if that reference was possible without causing a contradiction or breaking the fourth wall?

For example, say TV Show X references Movie Y. Because they did this, everything related to Movie Y must exist in the world of Show X. Here is something that might cause a contradiction: You went to the IMDB page of Movie Y, saw that Actor A in that movie co-starred with Actor B in another movie, and saw that Actor B costarred in another movie with Actor C, and saw that Actor C was in a film with Actor D. But Actor D is someone playing a character in Show X. Hence, by referencing Movie Y, Show X has created a contradiction where, not only does a character exist in this world, but also his actor.

Another example could be the following: Movie A references Movie B, who references Movie C, so on and so on. We follow the chain until we get to a movie that contradicts Movie A. For example, say in Movie A donuts don't exist. Yet, in Movie D, someone eats a donut. A contradiction has occurred.
<bot>: Fiction 1 can contradict itself by referencing other fiction 2. Not because fiction 2 directly contradicts fiction 1, but because something fiction 2, in turn references, contradicts fiction 1.