Filming
Principal photography lasted about 50 days, from winter 1998 to February 1999. American Beauty was filmed on soundstages at the Warner Bros. backlot in Burbank, California, and at Hancock Park and Brentwood in Los Angeles. The aerial shots at the beginning and end of the film were captured in Sacramento, California, and many of the school scenes were shot at South High School in Torrance, California; several extras in the gym crowd were South High students. The film is set in an upper middle-class neighborhood in an unidentified American town. Production designer Naomi Shohan likened the locale to Evanston, Illinois, but said, "it's not about a place, it's about an archetype... The milieu was pretty much Anywhere, USA—upwardly mobile suburbia." The intent was for the setting to reflect the characters, who are also archetypes. Shohan said, "All of them are very strained, and their lives are constructs." The Burnhams' household was designed as the reverse of the Fitts'—the former a pristine ideal, but graceless and lacking in "inner balance", leading to Carolyn's desire to at least give it the appearance of a "perfect all-American household"; the Fitts's home is depicted in "exaggerated darkness [and] symmetry".
The production selected two adjacent properties on the Warner backlot's "Blondie Street" for the Burnham and Fitts's homes. The crew rebuilt the houses to incorporate false rooms that established lines of sight—between Ricky and Jane's bedroom windows, and between Ricky's bedroom and Lester's garage. The garage windows were designed specifically to obtain the crucial shot toward the end of the film in which Col. Fitts—watching from Ricky's bedroom—mistakenly assumes that Lester is paying Ricky for sex. Mendes made sure to establish the line of sight early on in the film to make the audience feel a sense of familiarity with the shot. The house interiors were filmed on the backlot, on location, and on soundstages when overhead shots were needed. The inside of the Burnhams' home was shot at a house close to Interstate 405 and Sunset Boulevard in Los Angeles; the inside of the Fitts's home was shot in the city's Hancock Park neighborhood. Ricky's bedroom was designed to be cell-like to suggest his "monkish" personality, while at the same time blending with the high-tech equipment to reflect his voyeuristic side. The production deliberately minimized the use of red, as it was an important thematic signature elsewhere. The Burnhams' home uses cool blues, while the Fitts's is kept in a "depressed military palette".
Mendes's dominating visual style was deliberate and composed, with a minimalist design that provided "a sparse, almost surreal feeling—a bright, crisp, hard edged, near Magritte-like take on American suburbia"; Mendes constantly directed his set dressers to empty the frame. He made Lester's fantasy scenes "more fluid and graceful", and Mendes made minimal use of steadicams, feeling that stable shots generated more tension. For example, when Mendes used a slow push in to the Burnhams' dinner table, he held the shot because his training as a theater director taught him the importance of putting distance between the characters. He wanted to keep the tension in the scene, so he only cut away when Jane left the table. Mendes used a hand-held camera for the scene in which Col. Fitts beats Ricky. Mendes said the camera provided the scene with a "kinetic ... off-balance energy". He also went hand-held for the excerpts of Ricky's camcorder footage. Mendes took a long time to get the quality of Ricky's footage to the level he wanted. For the plastic-bag footage, Mendes used wind machines to move the bag in the air. The scene took four takes; two by the second unit did not satisfy Mendes, so he shot the scene himself. He felt his first take lacked grace, but for the last attempt, he changed the location to the front of a brick wall and added leaves on the ground. Mendes was satisfied by the way the wall gave definition to the outline of the bag.
Mendes avoided using close-ups, believing the technique was overused. He also mentioned Spielberg's advice to imagine an audience silhouetted at the bottom of the camera monitor, to keep in mind that it was being shot for display on a 40-foot (10 m) screen. Spielberg—who visited the set a few times—also advised Mendes not to worry about costs if he had a "great idea" toward the end of a long working day. Mendes said, "That happened three or four times, and they are all in the movie." Despite Spielberg's support, DreamWorks and Mendes fought constantly over the schedule and budget, although the studio interfered little with the film's content. Spacey, Bening and Hall worked for significantly less than their usual rates. American Beauty cost DreamWorks $15 million to produce, slightly above their projected sum. Mendes was so dissatisfied with his first three days' filming that he obtained permission from DreamWorks to reshoot the scenes. He said, "I started with a wrong scene, actually, a comedy scene. And the actors played it way too big: ... it was badly shot, my fault, badly composed, my fault, bad costumes, my fault ...; and everybody was doing what I was asking. It was all my fault." Aware that he was a novice, Mendes drew on the experience of Hall: "I made a very conscious decision early on, if I didn't understand something technically, to say, without embarrassment, 'I don't understand what you're talking about, please explain it.'"
Mendes encouraged some improvisation; for example, when Lester masturbates in bed beside Carolyn, the director asked Spacey to improvise several euphemisms for the act in each take. Mendes said, "I wanted that not just because it was funny ... but because I didn't want it to seem rehearsed. I wanted it to seem like he was blurting it out of his mouth without thinking. [Spacey] is so in control—I wanted him to break through." Spacey obliged, eventually coming up with 35 phrases, but Bening could not always keep a straight face, which meant the scene had to be shot ten times. The production used small amounts of computer-generated imagery. Most of the rose petals in Lester's fantasies were added in post-production, although some were real and had the wires holding them digitally removed. When Lester fantasizes about Angela in a rose-petal bath, the steam was real, save for in the overhead shot. To position the camera, a hole had to be cut in the ceiling, through which the steam escaped; it was instead added digitally.