Question: Which film directed by Yoon Je-Kyoon has been compared to a 1999 American teen sex comedy film?

Context paragraphs:
Where the Boys Are '84: Where the Boys Are '84 (onscreen title: Where the Boys Are) is a 1984 American comedy film and a remake of the 1960 teen sex comedy film "Where the Boys Are", starring Lisa Hartman, Russell Todd, Lorna Luft, Wendy Schaal and Lynn-Holly Johnson.  Directed by Hy Averback and produced by Allan Carr, it was the first film released by Tri-Star Pictures.

American Pie (film): American Pie is a 1999 teen sex comedy film written by Adam Herz and directed by brothers Paul and Chris Weitz, in their directorial film debut.  It is the first film in the "American Pie" theatrical series.  The film was a box-office hit and spawned three direct sequels: "American Pie 2" (2001), "American Wedding" (2003), and "American Reunion" (2012).  The film concentrates on five best friends (Jim, Kevin, Oz, Finch, and Stifler) who attend East Great Falls High.  With the exception of Stifler (who has already lost his virginity), the guys make a pact to lose their virginity before their high school graduation.  The title is borrowed from the song of the same name and refers to a scene in the film, in which the protagonist is caught masturbating with a pie after being told that third base feels like "warm apple pie".  Writer Adam Herz has stated that the title also refers to the quest of losing one's virginity in high school, which is as "American as apple pie."

Miracle on 1st Street: Miracle on 1st Street is a 2007 South Korean comedy-drama film.  Written and directed by Yoon Je-kyoon, it reunited him with actors Im Chang-jung and Ha Ji-won, the stars of his earlier film "Sex Is Zero".  With 2,750,457 admissions, "Miracle on 1st Street" was the 5th most popular Korean film of 2007.

Sex Is Zero: Sex Is Zero () is a 2002 South Korean film written and directed by Yoon Je-kyoon, starring Im Chang-jung and Ha Ji-won.  In the style of American gross-out comedies like "American Pie", it follows the exploits of a group of college students, which eventually takes a serious turn.  "Sex Is Zero" sold 4,089,900 tickets in South Korea, making it the fifth most popular film of 2002.

Secret Admirer: Secret Admirer is a 1985 American teen romantic comedy film written and directed by David Greenwalt in his feature film directorial debut, and starring C. Thomas Howell, Lori Loughlin, Kelly Preston and Fred Ward.  The original music score was composed by Jan Hammer.  The film was produced at the height of the teen sex comedy cinema craze in the mid-1980s.

Ode to My Father: Ode to My Father (; lit.  "Gukje (International) Market") is a 2014 South Korean drama film directed by Yoon Je-kyoon.  Starring Hwang Jung-min and Yunjin Kim, it depicts modern Korean history from the 1950s to the present day through the life of an ordinary man, as he experiences events such as the Hungnam Evacuation of 1950 during the Korean War, the government's decision to dispatch nurses and miners to West Germany in the 1960s, and the Vietnam War.

Yoon Je-kyoon: Youn Je-kyun (born 1969) is a South Korean film director .  His debut "My Boss, My Hero" is about a gangster who is sent back to school, while "Sex Is Zero" has been compared with "American Pie".

Pubescence (film): Pubescence is a 2011 Chinese teen sex comedy film directed and written by Guan Xiaojie, starring Zhao Yihuan and Wang Yi.  It is the first film in the "Pubescence" theatrical series.  The film was a box-office hit and spawned three direct sequels: "Paradise Lost", "Pubescence 3", and "Pubescence 4".  It was released on 20 July 2011.  The film is regarded as China's "American Pie".

Surf School: Surf School is a 2006 American teen sex comedy written and directed by Joel Silverman.  It stars Corey Sevier, Laura Bell Bundy, Harland Williams, and Sisqó.  A group of misfits must learn to surf in one week so they can compete in the championships.

Private School (film): Private School (also titled Private School ... for Girls) is a 1983 American teen sex comedy film, directed by Noel Black.  Starring Phoebe Cates, Betsy Russell, and Matthew Modine, it follows a teenaged couple attempting to have sex for the first time.

Supporting paragraphs: Yoon Je-kyoon American Pie (film)
Answer: Sex Is Zero