Yeah, Avary was responsibe for the Gold Watch chapter, the accidental shooting of Marvin and the Gimp scene. However, QT took these and added depth. He also re-wrote all the dialogue. Apparently, when Avary used to have his original script on his website, people that read it claimed QT’s was far superior. Well it would be, considering Avary only really thought of the stories.
"Early in his career, Avary made a number of contributions to some of Quentin Tarantino’s movies. He worked as a crew member on Tarantino’s unfinished first film, My Best Friend’s Birthday. He had at one point written an 80-page script called “The Open Road”, which he described as being about the “odd couple relationship between an uptight business man and an out-of-control hitch-hiker who travel into a Hellish mid-Western town together” and compared to Martin Scorsese’s After Hours. After moving on to another screenplay, a spec adaptation of The Silver Surfer, he allowed Tarantino to rewrite his script to add enough length to bring it to a 120-page industry standard length. Tarantino did more than that, turning out a 500-page handwritten behemoth of a screenplay which Avary described as “the Citizen Kane of pop culture.” Impressed with Tarantino’s work, Avary took on a producorial role, and proceeded to work with Tarantino to pare down the script into what would ultimately become True Romance (1993), (Tarantino used the remainder as the basis for parts of his other scripts.) Working as producer, he and Tarantino tried unsuccessfully for several years to get funding so that Tarantino could film the script himself. Eventually, the script was sold to French producer Samuel Hadida. Since Tarantino was busy prepping Reservoir Dogs, Avary was hired with Tarantino’s consent by Tony Scott and Hadida to work as a script doctor on the script, a job which included bringing the length down, reforming the narrative to a linear fashion, and writing a new, happy ending where the Clarence character isn’t killed.
When the Paul Brothers, a pair of wealthy bodybuilders who wanted to get into the movies, offered Tarantino funding for his script Natural Born Killers on the condition he include a scene featuring them, he couldn’t bring himself to write it out of disgust, and asked Avary to write it for him as a favor. The scene, which has come to be known as the “Hun Brothers” scene, has been described by Oliver Stone as the best scene in the script. It was, however, cut from the final film because, as Stone is quoted as saying on the “Natural Born Killers” special edition laserdisc, “I fucked it up.” Avary also co-wrote the background radio dialogue in Reservoir Dogs (1992), and designed the “Dog Eat Dog” logo which appeared in the end credits.
Most notably, Avary contributed material which, combined with Tarantino’s, formed the basis of Pulp Fiction (1994) for which he and Tarantino won the Academy Award for Best Original Screenplay. Earlier in their careers, Tarantino and Avary had planned on making an anthology movie comprised of three short films; one written and directed by Avary, one written and directed by Tarantino, and one written and directed by a third filmmaker, reportedly Adam Rifkin. When the third filmmaker never materialized, Tarantino and Avary took their respective stories and expanded them into full length screenplays separately. Tarantino’s story became Reservoir Dogs, and Avary’s story became “Pandemonium Reigns”. “Pandemonium Reigns” ended up forming the basis of the “Gold Watch” chapter of Pulp Fiction (an earlier version of his website displayed an excerpt from “Pandemonium Reigns”, illustrating the changes that were made by Tarantino when writing “The Gold Watch”), and other odd scenes Avary had written during his rewrite of True Romance were reworked and incorporated into the Pulp Fiction script, such as the accidental shooting of Marvin, and the scene in which the bullets fired at Jules and Vincent miss their targets. Tarantino and Avary got together in Amsterdam shortly after the release of Reservoir Dogs, and pasted each other’s scenes together into a first draft, after which Avary left to film Killing Zoe, leaving Tarantino to continue subsequent writing of Pulp Fiction. "
I’ve always said, they both need to team up again and make something kickass like QT’s earlier films. I mean, sure QT can make brilliant films without him (as he has done), but none of the films after the two of them parted ways have had good stories. I mean JB was adapted from a novel so that doesn’t count, and both KB and DP had the simplest story lines you can imagine. With Avary’s knack for thinking up brilliant stories and scenarios, and QT’s knack of being able to tell these great stories through directing, characters and dialogue, combined with the usual flare he brings to his films, they could make something truly special. I don’t think QT should indulge himself any further with his subsequent films as he will never be respected that way. RD and PF are drastically different to KB and DP. Imagine PF but with his recently acquired skills in filmmaking, style, substance and visuals!