When the two agents arrive in the horror level, they will meet a character called Dr. Ibanstein, who is an obvious Frankenstein parody. However, when you let them look at him, both Mortadelo and Filemón will state that his face seems familiar to them. And indeed: on closer examination, Ibanstein looks a lot like Francisco Ibánez - the Spanish comic-strip artist who originally created the two.
Before Una Aventura de Cine, the Spanish company Alcachofa Soft had already developed a couple of shorter adventure games with Mortadelo and Filemón. This game combines some of those to one comprehensive experience with better graphics and other improvements.