Boards
Famous moments in books that never actually happen in the books.
I've just read Around the World in 80 Days. Phileas Fogg never uses a balloon.
Before I read it I'd assumed he went around the world in a balloon but, although he uses various methods of transport, he doens't use a balloon once.
This surprised me and I imagine most other people who haven't read the book but know something of it would be under a similar misapprehension.