information:extraction
Filming

Before the filming began, the cast received a two-week period for rehearsal, which included a dinner where each actor and actress had to assume character for its duration. Filming was scheduled to begin on March 29, 1971, with the scene between Michael Corleone and Kay Adams as they leave Best & Co. in New York City after shopping for Christmas gifts. The weather on March 23 predicted snow flurries, which caused Ruddy to move the filming date forward; snow did not materialize and a snow machine was used. Principal filming in New York continued until July 2, 1971. Coppola asked for a three-week break before heading overseas to film in Sicily. Following the crew's departure for Sicily, Paramount announced that the release date would be moved to early 1972.

Cinematographer Gordon Willis initially turned down the opportunity to film The Godfather because the production seemed "chaotic" to him. After Willis later accepted the offer, he and Coppola agreed to not use any modern filming devices, helicopters, or zoom lenses. Willis and Coppola chose to use a "tableau format" of filming to make it seem as if it was viewed like a painting. He made use of shadows and low light levels throughout the film to show psychological developments. Willis and Coppola agreed to interplay light and dark scenes throughout the film. Willis underexposed the film in order to create a "yellow tone". The scenes in Sicily were shot to display the countryside and "display a more romantic land," giving these scenes a "softer, more romantic" feel than the New York scenes.

One of the film's most shocking moments involved an actual severed horse's head. The filming location for this scene is contested, as some sources indicate it was filmed at the Beverly Estate, while others indicate it was filmed at Sands Point Preserve on Long Island. Coppola received some criticism for the scene, although the head was obtained from a dog-food company from a horse that was to be killed regardless of the film. On June 22, the scene where Sonny is killed was shot on a runway at Mitchel Field in Uniondale, where three tollbooths were built, along with guard rails, and billboards to set the scene. Sonny's car was a 1941 Lincoln Continental with holes drilled in it to resemble bullet holes. The scene took three days to film and cost over $100,000.

Coppola's request to film on location was observed; approximately 90 percent was shot in New York City and its surrounding suburbs, using over 120 distinct locations. Several scenes were filmed at Filmways in East Harlem. The remaining portions were filmed in California, or in Sicily. The scenes set in Las Vegas were not shot on location because there were insufficient funds. Savoca and Forza d'Agrò were the Sicilian towns featured in the film. The opening wedding scene was shot in a Staten Island neighborhood using almost 750 locals as extras. The house used as the Corleone household and the wedding location was at 110 Longfellow Avenue in the Todt Hill neighborhood of Staten Island. The wall around the Corleone compound was made from styrofoam. Scenes set in and around the Corleone olive oil business were filmed on Mott Street.

After filming had ended on August 7, post-production efforts were focused on trimming the film to a manageable length. In addition, producers and director were still including and removing different scenes from the end product, along with trimming certain sequences. In September, the first rough cut of the film was viewed. Many of the scenes removed from the film were centered around Sonny, which did not advance the plot. By November, Coppola and Ruddy finished the semi-final cut. Debates over personnel involved with the final editing remained even 25 years after the release of the film. The film was shown to Paramount staff and exhibitors in late December 1971 and January 1972.