Alien 3 had a difficult production, with various screenwriters and directors getting involved in the project, and shooting began without a finished script. The film was the big-budget debut of a young David Fincher, who was brought into the project after a proposed version with Vincent Ward at the helm was cancelled well into pre-production. Fincher had little time to prepare, and the experience of making the film proved agonizing for him. Besides the need to shoot and rewrite the script simultaneously while fitting in sets that had already been built, filming was also plagued by incessant creative interference from studio executives, who overruled many of Fincher's decisions and dictated a large part of production. Adding to Fincher's burdens was the pressure to create a film worthy of the previous two and their revered directors. Upon completion, the studio dismantled and reworked the film without Fincher's consent, including a teaser trailer that suggested the film would take place on Earth. Fincher has since disowned the film, citing the aforementioned reasons. A heavily-revised version of the film, known as the Assembly Cut, was released in 2003, which Fincher refused to be involved with.