This was originally intended for a whole set of book cover parodies, which were never used. This is similar to what happened with the proposed magazine cover parodies which ended up being incorporated into the 11th and 13th series, but unlike the magazine covers which were used as wackys, the book cover parodies were not used except for this one (Gums). According to Jay Lynch "the cover of the book looked enough like the movie poster....and was a familiar enough image to be included [as a wacky]". See also the unpublished art for the Clodfather for more information.