Juan Obregón, a powerful Mexican drug lord, one of the Obregón brothers and the head of Tijuana Cartel Viola Davis as the Social Worker John Slattery as Assistant District Attorney Dan Colier James Pickens Jr. as The Prosecutor Salma Hayek as Rosario (uncredited) Development Steven Soderbergh had been interested in making a film about the drug wars for some time but did not want to make one about addicts. Producer Laura Bickford obtained the rights to the British teleivison miniseries Traffik (1989) and liked its structure. Soderbergh, who had seen the miniseries in 1990, started looking for a screenwriter to adapt it into a film. They read a script by Stephen Gaghan called Havoc, about upper-class white kids in Palisades High School doing drugs and getting involved with gangs. Soderbergh approached Gaghan to work on his film, but found he was already working for producer/director Edward Zwick. Bickford and Soderbergh approached Zwick, who agreed to merge the two projects and come aboard as a producer. Traffic was originally going to be distributed by 20th Century Fox, but it was put into turnaround unless actor Harrison Ford agreed to star. Soderbergh began shopping the film to other studios, but when Ford suddenly showed interest in Traffic, Fox's interest in the film was renewed, and the studio took it out of turnaround. Fox CEO Bill Mechanic championed the film, but he departed from the studio by the time the first draft was finished. It went back into turnaround. Mechanic had also wanted to make some changes to the script, but Soderbergh disagreed and decided to shop the film to other major studios. They all turned him down because they were not confident in the prospects of a three-hour film about drugs, according to Gaghan. USA Films, however, had wanted to take on the movie from the first time Soderbergh approached them. They provided the filmmakers with a $46 million budget, a considerable increase from the $25 million which Fox offered. Screenplay Soderbergh had "conceptual discussions" with Gaghan while he was shooting The Limey in October 1998, and they finished the outline before he went off to shoot Erin Brockovich. After Soderbergh was finished with that film, Gaghan had written a first draft in six weeks that was 165 pages long. After the film was approved for production, Soderbergh and Gaghan met two separate times for three days to reformat the script. The