Deliberately planted misinformation in movies and TV?

[Raguleader]

@Martini Enfield

I believe that in Fight Club, Chuck Palahniuk deliberately left out some of the details for making explosives etc from soap/other household chemicals, and in the film version, there’s a reference to making Napalm by mixing Cat Litter with Diet Cola- this clearly isn’t going to work, but it sounds just feasible enough to suit the story without giving idiots ideas…

My favorite part of Fight Club (the book) was the recurring line about using parafin in the production of high explosives, but entirely for the payoff at the end of the book.