Intrigued by a career in entertainment at a young age, he studied film and mathematics at the University of Colorado Boulder, where he met Parker.

Following its success, the two directed a film based on the series, South Park: Bigger, Longer & Uncut (1999), which was met with positive critical reception.

Outside of South Park, Stone has written, produced, and starred in the satirical action film Team America: World Police (2004), as well as the Broadway musical The Book of Mormon (2011), which, after long-tenured delays and years of development, was met with positive reviews.

Stone and his younger sister Rachel were raised in Littleton, Colorado, a suburb of Denver, where they attended Heritage High School.

[9] During this time, Parker had become engaged to long-time girlfriend Liane Adamo, but their relationship fell apart shortly before production on the trailer began.

[10] Alferd Packer: The Musical premiered in Boulder in October 1993; "they rented a limousine that circled to ferry every member of the cast and crew from the back side of the block to the red carpet at the theater's entrance.

Parker said he had a "vision" they needed to be at the festival, which resulted in the group renting out a conference room in a nearby hotel and putting on their own screenings.

[12] They unsuccessfully pitched a children's program titled Time Warped to Fox Kids, which would have involved fictionalized stories of people in history.

[11] David Zucker, who was a fan of Cannibal!, contacted the duo to produce a 15-minute short film for Seagram to show at a party for its acquisition of Universal Studios.

[15] Due to a misunderstanding, Parker and Stone improvised much of the film an hour before it was shot, creating it as a spoof of 1950s instructional videos.

Half of the budget for the picture came from a Japanese porn company called Kuki, who wanted to feature its performers in mainstream Western media.

[12] Fox executive Brian Graden cut Parker and Stone a personal check of a few thousand dollars to produce a video greeting card he could deliver to friends; the film would be a sequel to their earlier short Jesus vs.

[11][16][17] Due to the popularity of Jesus vs. Santa, Parker and Stone wanted to turn the short into a television series later entitled South Park, and offered the show to Fox.

[16][19] The pilot episode of South Park was made on a budget of $300,000,[20] and took between three and three and a half months to complete, and animation took place in a small room at Celluloid Studios, in Denver, Colorado, during the summer of 1996.

[21] The idea for the town of South Park came from the real Colorado basin of the same name where, according to the creators, a lot of folklore and news reports originated about "cattle mutilations and UFO and bigfoot sightings.

"[23] South Park premiered in August 1997 and immediately became one of the most popular shows on cable television, averaging consistently between 3.5 and 5.5 million viewers.

[26][27][28] An affiliate of the MTV Network until then, Comedy Central decided, in part due to the success of South Park, to have its own independent sales department.

[35] Parker and Stone state that subjecting themselves to a one-week deadline creates more spontaneity amongst themselves in the creative process, which they feel results in a funnier show.

As of 2011 its viewership was lower than at the height of its popularity in its earliest seasons, but South Park remained one of the highest-rated series on Comedy Central.

[49] In 2007, the duo, with the help of their lawyer, Kevin Morris, cut a 50–50 joint venture with Comedy Central on all revenue not related to television; this includes digital rights to South Park, as well as movies, soundtracks, T-shirts and other merchandise, in a deal worth $75 million.

[51] They threw a party the night of the election with the writers, with intentions to begin writing the following Monday and shooting the show in January 2001 with the inauguration.

[54] Comedy Central officially cancelled the series in August 2001 as a cost-cutting move; Stone was quoted as saying "A super-expensive show on a small cable network ... the economics of it were just not going to work.

[56][57] During this time, the duo also signed a deal with Shockwave.com to produce 39 animated online shorts, in which they would retain full artistic control; the result, Princess, was rejected after only two episodes.

In 2002, the duo began working on Team America: World Police, a satire of big-budget action films and their associated clichés and stereotypes, with particular humorous emphasis on the global implications of the politics of the United States.

[63] Parker and Stone, alongside writer-composer Robert Lopez, began working on a musical centering on Mormonism during the production of Team America.

[13] Originally, producer Scott Rudin planned to stage The Book of Mormon off-Broadway at the New York Theatre Workshop in summer 2010, but opted to premiere it directly on Broadway, "[s]ince the guys [Parker and Stone] work best when the stakes are highest.

"[66] After a frantic series of rewrites, rehearsals, and previews,[13] The Book of Mormon premiered on Broadway at the Eugene O'Neill Theatre on March 24, 2011.

Inspired by the production work of Lucasfilm and DreamWorks, Stone and Parker considered founding the studio for approximately two years before committing.

[73] The team was originally assembled for a film project that was interrupted due to the pandemic, who made the video based on a series of impressions that Serafinowicz developed of a "sassy" Donald Trump.

A group named "Save Casa Bonita" filed an objection to Parker and Stone's purchase, pointing out that they had in fact made an offer first.