Independence Day (film) - Production

Production

The idea for the film came when Emmerich and Devlin were in Europe promoting their film Stargate. A reporter asked Emmerich why he made a movie with content like Stargate if he did not believe in aliens. Emmerich stated he was still fascinated by the idea of an alien arrival, and further explained his response by asking the reporter to imagine what it would be like to wake up one morning and discover 15-mile-wide spaceships were hovering over the largest cities in the world. Emmerich then turned to Devlin and said "I think I have an idea for our next film."

Emmerich and Devlin decided to expand on the idea by incorporating a large-scale attack, with Devlin saying he was bothered by the fact that "for the most part, in alien invasion movies, they come down to Earth and they're hidden in some back field ...r they arrive in little spores and inject themselves into the back of someone's head." Emmerich agreed by asking Devlin if arriving from across the galaxy, "would you hide on a farm or would you make a big entrance?" The two wrote the script during a month-long vacation in Mexico, and just one day after they sent it out for consideration, 20th Century Fox chairman Peter Chernin greenlit the screenplay. Pre-production began just three days later in February 1995. The United States military originally intended to provide personnel, vehicles, and costumes for the film; however, they backed out when the producers refused to remove the Area 51 references from the script.

A then-record 3,000-plus special effects shots would ultimately be required for the film. The shoot utilized on-set, in-camera special effects more often than computer-generated effects in an effort to save money and get more authentic pyrotechnic results. Many of these shots were accomplished at Hughes Aircraft in Culver City, California, where the film's art department, motion control photography teams, pyrotechnics team, and model shop were headquartered. The production's model-making department built more than twice as many miniatures for the production than had ever been built for any film before by creating miniatures for buildings, city streets, aircraft, landmarks, and monuments. The crew also built miniatures for several of the spaceships featured in the movie, including a 30-foot (9.1 m) destroyer model and a version of the mother ship spanning 12 feet (3.7 m). City streets were recreated, then tilted upright beneath a high-speed camera mounted on a scaffolding filming downwards. An explosion would be ignited below the model, and flames would rise towards the camera, engulfing the tilted model and creating the rolling "wall of destruction" look seen in the film. A model of the White House was also created, covering 10 feet (3.0 m) by 5 feet (1.5 m), and was used in forced-perspective shots before being destroyed in a similar fashion for its own destruction scene. The detonation took a week to plan and required 40 explosive charges.

The aliens in the film were designed by production designer Patrick Tatopoulos. The actual aliens of the film are diminutive and based on a design Tatopoulos drew when tasked by Emmerich to create an alien that was "both familiar and completely original". These creatures wear "bio-mechanical" suits that are based on another design Tatopoulos pitched to Emmerich. These suits were 8 feet (2.4 m) tall, equipped with 25 tentacles, and purposely designed to show it could not sustain a person inside so it would not appear to be a "man in a suit".

Principal photography began in July 1995 in New York City. A second unit gathered plate shots and establishing shots of Manhattan, Washington D.C., an RV community in Flagstaff, Arizona, and the Very Large Array on the Plains of San Agustin, New Mexico. The main crew also filmed in nearby Cliffside Park, New Jersey before moving to the former Kaiser Steel mill in Fontana, California to film the post-attack Los Angeles sequences. The production then moved to Wendover, Utah and West Wendover, Nevada, where the deserts doubled for Imperial Valley and the Wendover Airport doubled for the El Toro and Area 51 exteriors. It was here where Pullman filmed his pre-battle speech. Immediately before filming the scene, Devlin and Pullman decided to add "Today, we celebrate our Independence Day!" to the end of the speech. At the time, the production was nicknamed "ID4" because Warner Bros. owned the rights to the title Independence Day, and Devlin had hoped if Fox executives noticed the addition in dailies, the impact of the new dialogue would help them win the rights to the title. The right to use the title was eventually won two weeks later.

The production team moved to the Bonneville Salt Flats to film three scenes, then returned to California to film in various places around Los Angeles, including Hughes Aircraft where sets for the cable company and Area 51 interiors were constructed at a former aircraft plant. Sets for the latter included corridors containing windows that were covered with blue material. The filmmakers originally intended to use the chroma key technique to make it appear as if activity was happening on the other side of the glass; but the composited images were not added to the final print because production designers decided the blue panels gave the sets a "clinical look". The attacker hangar set contained an attacker mock-up 65 feet (20 m) wide that took four months to build. The White House interior sets used had already been built for The American President and had previously been used for Nixon. Principal photography completed on November 3, 1995.

The movie originally depicted Russell Casse being rejected as a volunteer for the July 4 aerial counteroffensive because of his alcoholism. He then uses a stolen missile tied to his red biplane to carry out his suicide mission. According to Dean Devlin, test audiences responded well to the scene's irony and comedic value. However, the scene was re-shot to include Russell's acceptance as a volunteer, his crash course in modern fighter aircraft, and him flying an F-18 instead of the biplane. Devlin preferred the alteration because the viewer now witnesses Russell ultimately making the decision to sacrifice his life, and seeing the biplane keeping pace and flying amongst F-18s was "just not believable". The film was officially completed on June 20, 1996.