Salvador Santos like Roberto Rodríguez aspires to be a comic book creator, both characters being inspired by Nicolas López' own dream. Also, Santos works in the same comic book anthology magazine that was featured in Promedio Rojo, ''La Pieza Oscura''. When Anthrodipterus talks about how people eats flies the ''Cattin'' brand it's shown, this company is owned by Papitas of Promedio Rojo. At the climax of the movie, in the convention, someone is cosplaying as "La Extraña Obesidad del Ser", the protagonist of Roberto's comic.
Lorenza wears a shirt featuring the logo of ''La Pieza Oscura'', a fictional comic book anthology magazine that first appeared in Nicolás López's first feature film, whos protagonist dreamed of working on.
There's a sproof of the Spider-Man scene where Spider-Man saves Mary Jane and after that he apears upside down, in Promedio Rojo appears the same scene but the fat heroe when is upside down fall to flat because it is too fat.