Back to the Future Part III effects for "Part III" were managed by effects company Industrial Light & Magic; the head of its animation department, Wes Takahashi, returned to once again animate the DeLorean's time travel sequences. The film grossed $23 million in its first weekend of U.S. release and $87.6 million altogether in U.S. box office receipts (or about $152.4 million when adjusted for inflation as of January 2011) – $243 million worldwide. On December 17, 2002, Universal released "Back to the Future Part III" in a boxed set with the first two films on DVD and VHS. In the DVD widescreen edition, there was
Back to the Future Part III film played to a more materialistic idea of success, Zemeckis considered "Part III" more of a "human journey" with spiritual overtones. The shooting of the "Back to the Future" sequels, which were shot back-to-back throughout 1989, reunited much of the crew of the original. The films were shot over the course of 11 months, save for a three-week hiatus between filming of "Parts II" and "III". The most grueling part was editing "Part II" while filming "Part III", and Zemeckis bore the brunt of the process over a three-week period. While Zemeckis was shooting most of the train sequences in