Interesting Origin Story

According to TvTropes, this is how it goes:

Began with Avary's script, "The Open Road", which he described as "an odd couple relationship between an uptight business man and an out-of-control hitch-hiker who travel into a Hellish mid-Western town together." He became blocked at the 50 page mark and asked friend Quentin Tarantino to help him expand it. In Roger's own words, Quentin turned it into a "500 page, handwritten, Bible of pop culture." With Avary typing, the pair worked together on rewrites, which eventually became a combination of True Romance and Natural Born Killers. Reportedly, it played like a greatly expanded version of Natural Born Killers (their original NBK, not what Oliver Stone ended up doing), told in Quentin's trademark chapter fashion. True Romance happens when Mickey and Mallory Knox escape from prison and decide to kill the screenwriter who wrote a movie about them which they hated. The screenwriter goes on the run, and True Romance is the movie he writes while running. When Roger and Quentin felt the stories were well developed enough to sell, they (wisely) split them into two movies. Quentin further refined the script into the form that was sold. When Tony Scott wanted to reorder the story chronologically, Avary was brought on to do the polish, also writing (again, at Scott's request) the new ending where Clarence doesn't die. Ultimately Roger Avary went uncredited, and was given a "Special Thanks" acknowledgement.

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