F. Scott Fitzgerald's struggles in screenland would have been greatly eased had he not missed, by several decades, the savvy advice of the theorist and director Jean-Luc Godard, who posited that "all you need to make a movie is a girl and a gun."
Clearly the author of "The Great Gatsby" came to Hollywood with too much ammo of the literary and intellectual sort.
Or a sword. A sword would also work. But it must be very, very sharp.
Fitzgerald as Scribe Among the Glitterati