Early career: 1969–1979
In a beginning film course at USC Cinema during 1969, Carpenter wrote and directed an eight-minute short film, Captain Voyeur. The film was rediscovered in the USC archives in 2011 and proved interesting because it revealed elements that would appear in his later film, Halloween (1978).
The next year he collaborated with producer John Longenecker as co-writer, film editor, and music composer for The Resurrection of Broncho Billy (1970), which won an Academy Award for Best Live Action Short Film. The short film was enlarged to 35 mm, sixty prints were made, and the film was released theatrically by Universal Studios for two years in the United States and Canada.
Carpenter's first major film as director, Dark Star (1974), was a science-fiction comedy that he co-wrote with Dan O'Bannon (who later went on to write Alien, borrowing freely from much of Dark Star). The film reportedly cost only $60,000 to make. It was difficult to make as both Carpenter and O'Bannon completed the film by multitasking, with Carpenter doing the musical score as well as the writing, producing, and directing, while O'Bannon acted in the film and did the special effects (which caught the attention of George Lucas who hired him to work with the special effects for the film Star Wars). Carpenter received praise for his ability to make low-budget films.
Carpenter's next film was Assault on Precinct 13 (1976), a low-budget thriller influenced by the films of Howard Hawks, particularly Rio Bravo. As with Dark Star, Carpenter was responsible for many aspects of the film's creation. He not only wrote, directed, and scored it, but also edited the film using the pseudonym "John T. Chance" (the name of John Wayne's character in Rio Bravo). Carpenter has said that he considers Assault on Precinct 13 to have been his first real film because it was the first film that he filmed on a schedule. The film was the first time Carpenter worked with Debra Hill, who would collaborate with Carpenter on some of his most well-known films.
Carpenter assembled a main cast that consisted of experienced but relatively obscure actors. The two main actors were Austin Stoker, who had appeared previously in science fiction, disaster, and blaxploitation films, and Darwin Joston, who had worked primarily for television and had once been Carpenter's next-door neighbor.
The film received a critical reassessment in the United States, where it is now generally regarded as one of the best exploitation films of the 1970s.
Carpenter both wrote and directed the Lauren Hutton thriller Someone's Watching Me!. This television film is the tale of a single, working woman who, soon after arriving in L.A., discovers that she is being stalked.
Eyes of Laura Mars, a 1978 thriller featuring Faye Dunaway and Tommy Lee Jones and directed by Irvin Kershner, was adapted (in collaboration with David Zelag Goodman) from a spec script titled Eyes, written by Carpenter, and would become Carpenter's first major studio film of his career.
Halloween (1978) was a commercial success and helped develop the slasher genre. Originally an idea suggested by producer Irwin Yablans (titled The Babysitter Murders), who thought of a film about babysitters being menaced by a stalker, Carpenter took the idea and another suggestion from Yablans that it occur during Halloween and developed a story. Carpenter said of the basic concept: "Halloween night. It has never been the theme in a film. My idea was to do an old haunted house film."
Film director Bob Clark suggested in an interview released in 2005 that Carpenter had asked him for his own ideas for a sequel to his 1974 film Black Christmas (written by Roy Moore) that featured an unseen and motiveless killer murdering students in a university sorority house. As also stated in the 2009 documentary Clarkworld (written and directed by Clark's former production designer Deren Abram after Clark's tragic death in 2007), Carpenter directly asked Clark about his thoughts on developing the anonymous slasher in Black Christmas:
...I did a film about three years later, started a film with John Carpenter, it was his first film for Warner Bros. (which picked up 'Black Christmas'), he asked me if I was ever gonna do a sequel, and I said no. I was through with horror, I didn't come into the business to do just horror. He said, "Well, what would you do if you did do a sequel?" I said it would be the next year, and the guy would have actually been caught, escape from a mental institution, go back to the house, and they would start all over again. And I would call it 'Halloween'. The truth is John didn't copy 'Black Christmas', he wrote a script, directed the script, did the casting. 'Halloween' is his movie, and besides, the script came to him already titled anyway. He liked 'Black Christmas' and may have been influenced by it, but John Carpenter did not copy the idea. Fifteen other people had thought to do a movie called 'Halloween,' but the script came to John with that title on it.
The film was written by Carpenter and Debra Hill with Carpenter stating that the music was inspired by both Dario Argento's Suspiria (which also influenced the film's slightly surreal color scheme) and William Friedkin's The Exorcist.
Carpenter again worked with a relatively small budget, $300,000. The budget was so small the actors provided their own costumes. The film grossed more than $65 million initially, making it one of the most successful independent films of all time.
Carpenter has described Halloween as "true crass exploitation. I decided to make a film I would love to have seen as a kid, full of cheap tricks like a haunted house at a fair where you walk down the corridor and things jump out at you". The film has often been cited as an allegory on the virtue of sexual purity and the danger of casual sex, although Carpenter has explained that this was not his intent: "It has been suggested that I was making some kind of moral statement. Believe me, I'm not. In Halloween, I viewed the characters as simply normal teenagers."
In addition to the film's critical and commercial success, Carpenter's self-composed "Halloween Theme" became recognizable in its own right.
In 1979, Carpenter began what was to be the first of several collaborations with actor Kurt Russell when he directed the television film Elvis.