Question: Sana Saeed made her screen debut as an adult in a film directed by a man informally referred to by what nickname?

Context paragraphs:
Jawani Phir Nahi Ani: Jawani Phir Nahi Ani is a 2015 Pakistani adventure and comedy film directed by Nadeem Beyg.  It was co-produced by Humayun Saeed, Salman Iqbal and Shahzad Nasib at Saeed's production house, Six Sigma Plus.  The film stars Humayun Saeed, Hamza Ali Abbasi, Ahmad Ali Butt, Vasay Chaudhry, Mehwish Hayat and Sohai Ali Abro.  The supporting cast includes Javed Sheikh, Ismail Tara, Bushra Ansari, Ayesha Khan, Sarwat Gillani and Uzma Khan.  The film is about a single man who is a divorce lawyer.  He takes his three married friends on a trip to help them escape their wives.

Los Angeles and Salt Lake Railroad: The Los Angeles and Salt Lake Railroad (reporting mark SLR) was a rail company that completed and operated a railway line between its namesake cities, via Las Vegas, Nevada.  Incorporated in Utah in 1901 as the San Pedro, Los Angeles and Salt Lake Railroad, the line was largely the brainchild of William Andrews Clark, a Montana mining baron and United States Senator.  Clark enlisted the help of Utah's U.S. Senator Thomas Kearns, mining magnate and newspaper man, to ensure the success of the line through Utah.  Construction of the railroad's main line was completed in 1905.  Company shareholders adopted the LA&SL name in 1916.  The railway was also known by its official nickname, "The Salt Lake Route", and was sometimes informally referred to as "The Clark Road".  The tracks are still in use by the modern Union Pacific Railroad, as the Caliente, Sharp, and Lynndyl Subdivisions.

Mithun Chakraborty: Gourang Chakraborty (born 16 June 1952), better known by his stage name Mithun Chakraborty (informally referred to as Mithun Da), is an Indian film actor, singer, producer, writer, social worker, entrepreneur, television presenter and a former Rajya Sabha Member of Parliament.  He is the recipient of two Filmfare Awards and three National Film Awards.  He made his acting debut with the art house drama "Mrigayaa" (1976), for which he won his first National Film Award for Best Actor.

Karan Johar: Karan Johar (born 25 May 1972), often informally referred to as KJo, is an Indian film director, producer, screenwriter, costume designer, actor and television personality who is primarily known for his work in Hindi films.  He is the son of Hiroo Johar and the acclaimed producer Yash Johar.

Those Kids from Town: Those Kids from Town is a 1942 British, black-and-white, comedy-drama propaganda film war film, directed by Lance Comfort and starring George Cole, Harry Fowler, Percy Marmont, Ronald Shiner as Mr. Bert Burns and Charles Victor as Harry, the Vicar.  It was produced by Richard Vernon and presented by British National Films and Anglo-American Film Corporation.  The film is adapted for the screen, by Adrian Alington, from his own, topical novel "These Our Strangers", dealing with the experiences of a group of wartime evacuee children from London, sent to safety in a rural village, and their interaction with the host community.  Of the juvenile actors involved, Fowler (making his screen debut here aged 15) and Cole (then 16) would go on to very successful adult careers, while Angela Glynne and Stanley Escane had more modest careers for the next decade or so.

Rani Mukerji filmography: Rani Mukerji is an Indian actress known for her work in Bollywood films.  She made her screen debut with a supporting role in "Biyer Phool" (1996), a Bengali film directed by her father Ram Mukherjee.  Her first leading role was that of a rape victim in the 1997 social drama "Raja Ki Aayegi Baraat", for which she won a special jury trophy at the Screen Awards ceremony.  In 1998 she received wider recognition for her role alongside Aamir Khan in the action film "Ghulam".  Later that year, her breakthrough role as the romantic interest of Shah Rukh Khan's character in the romantic drama "Kuch Kuch Hota Hai" earned Mukerji her first Filmfare Award in the Best Supporting Actress category.  She followed this initial success by portraying the leading lady in several films, including the comedy film "Hello Brother" (1999) and the drama "" (2001), none of which helped propel her career forward.

Claire Foy: Claire Elizabeth Foy (born 16 April 1984) is an English actress.  She studied drama and screen studies at Liverpool John Moores University and trained at the Oxford School of Drama, where she appeared in four plays, including "Watership Down".  She made her screen debut in the pilot episode of "Being Human" (2008) and in an episode of the BBC soap opera "Doctors" (2008).  Following her professional stage debut at the Royal National Theatre, she played the title role in the BBC One production of "Little Dorrit" (2008), and made her film debut as Anna in "Season of the Witch" (2011).

Student of the Year: Student of the Year is a 2012 Indian romantic comedy-drama film directed by Karan Johar and produced by Hiroo Yash Johar under the banner of Dharma Productions and in collaboration with Shah Rukh Khan's Red Chillies Entertainment.  The movie features newcomers Sidharth Malhotra, Varun Dhawan and Alia Bhatt in the lead roles with Rishi Kapoor, Sana Saeed, Ronit Roy, Sahil Anand, Ram Kapoor and Farida Jalal in supporting roles.  The movie also features Boman Irani, Kajol, Farah Khan and Vaibhavi Merchant in guest appearances.  This is Karan Johar's first-and-only directorial venture without Shah Rukh Khan.

Sana Saeed: Sana Saeed (born 22 September 1988) is an Indian actress and model, who appears in Bollywood films.  She first appeared as a child artist in "Kuch Kuch Hota Hai" (1998) and continued to do so in films "Har Dil Jo Pyar Karega" (2000) and "Badal" (2000).  She also appeared in television shows such as "Babul Ka Aangann Chootey Na" (2008) and "Lo Ho Gayi Pooja Iss Ghar Ki" (2008).  In 2012, Saeed made her screen debut as an adult in a supporting role in Karan Johar's "Student Of The Year", which emerged as a box-office commercial success.  She has appeared in many reality shows including "Jhalak Dikhhla Jaa" (2013), "Nach Baliye" (2015) and "" (2016).

Kuch Kuch Hota Hai: Kuch Kuch Hota Hai (English: "Something Happens") also known as KKHH, is an Indian Hindi coming-of-age romantic comedy drama film, released in India and the United Kingdom on 16 October 1998.  It was written and directed by Karan Johar, and starred the popular on-screen pair of Shah Rukh Khan and Kajol in their fourth film together.  Rani Mukerji featured in a supporting role, while Salman Khan also had an extended-cameo appearance.  Sana Saeed, who was featured in a supporting role, made her film debut in this movie.

Supporting paragraphs: Sana Saeed Karan Johar
Answer: KJo