Question: Mazhar Zaidi had a film screened at the 2017 Swiss film festival that was founded in what year?

Context paragraphs:
Yeh Hui Na Mardon Wali Baat: Yeh Hui Na Mardon Wali Baat is a Pakistani Urdu film directed by Farjad Nabi and Mazhar Zaidi starring Resham, Raheel, Guriya and Munna.

Jeewan Hathi: Jeewan Hathi (Urdu: ‎ , English: The Elephant in the Room ) is a 2016 Pakistani dark comedy short film directed by Meenu Gaur and Farjad Nabi and written by Fasih Bari Khan.  Shailja Kejriwal and Mazhar Zaidi have produced the film.  The Film has Samiya Mumtaz, Hina Dilpazeer, Naseeruddin Shah, Saife Hassan and Adnan Jaffar as lead cast in the film.

Jimi: All Is by My Side: Jimi: All Is by My Side is a 2013 British-Irish drama film about Jimi Hendrix, written and directed by John Ridley.  The film tells the story of Hendrix's career beginnings, through his arrival in London, the creation of The Jimi Hendrix Experience and the beginning of his fame after his performance at the Monterey Pop Festival.  It was screened in the Special Presentation section at the 2013 Toronto International Film Festival and at the South by Southwest film festival and was released in the UK on 8 August 2014.  The film screened at the New Zealand International Film Festival (NZIFF) on 26 July 2014.

Ottayaal paatha: Ottayaal paatha (The Narrow Path) is a Malayalam feature film directed by Satish Babusenan and Santosh Babusenan.  The film won the Silver Gateway, the award for the second best film, at the 18th Jio MAMI Mumbai Film Festival held in October 2016.  Ottayaal Paatha was the only Malayalam film screened in the Mumbai festival.  The film was also adjudged as the Second Best Film by the jury of the 47th Kerala State Film Awards announced in January 2017.  It was the only Indian movie selected to the competition section of the Cairo International Film Festival held in Cairo in November 2016.  The Cairo International Film Festival is the oldest film festival in Africa and the Arab World and is among the 15 A-list competitive film festivals in the world.

Mazhar Zaidi: Mazhar Zaidi (Urdu: ‎ ) is a British Pakistani film producer, artist, journalist, columnist and documentary director.  He is best known for producing the 2013 Pakistani film "Zinda Bhaag", which earned him international recognition and accolades and became the country's first entry to Academy Awards after a gap of over 50 years.  The film also won many international awards.  One of his films was screened at London Indian Film Festival in June 2017 and was screened at Locarno Film Festival in Switzerland in August 2017.  He along with his partners Meenu Gaur and Farjad Nabi also recently curated an art exhibition titled 'Art SabKa' focussing on contemporary art inspired by Pakistani Cinema.

Gardaab: Gardaab (Urdu: ‎ ; English: Whirlpool ) is an upcoming Pakistani drama film directed by Harune Massey, written by Harune Massey, Saleemullah Nasir and produced by Mazhar Zaidi under the production banner of Matteela Films.  The film features Fawad Khan and Amna Ilyas in the main cast.  It also features Gohar Rasheed, Nimra Bucha, Adnan Shah Tipu, Mohammad Javed and Khalid Ahmed.  And a special appearance is also made by Indian actor Naseeruddin Shah.

Zinda Bhaag: Zinda Bhaag (Urdu: ‎ ) is a 2013 Pakistani Punjabi-language drama film co-directed by Meenu Gaur and Farjad Nabi, and produced by Mazhar Zaidi.  The film focuses on the issue of illegal migration.  The film had a premiere show on 19 September 2013 and a wide release on 20 September.  The film was selected as the Pakistani entry for the Best Foreign Language Film at the 86th Academy Awards, the first in over 50 years.

Locarno Festival: The Locarno Festival (formerly called the Festival del film Locarno and commonly referred to as the Locarno Film Festival) is an annual film festival held every August in Locarno, Switzerland.  Founded in 1946, it is one of the longest-running film festivals, and is also known for being a prestigious platform for art house films.  The festival screens films in various competitive and non-competitive sections, including feature-length narrative and documentary, short, avant-garde, and retrospective programs.  The Piazza Grande section is held in one of the world’s largest open-air screening venues, seating 8,000 spectators.

Matteela Films: Matteela Films is a Pakistani film production company established by Mazhar Zaidi, a British Pakistani journalist, film producer, director and Farjad Nabi and Meenu Gaur, Pakistan's well known film directors.  Matteela has produced a number of documentaries for leading international broadcasters including BBC, ZDF, ARTE and SkeNews.  The first feature film under "Matteela Films" production banner was Zinda Bhaag and subsequently it produced Gardaab directed by Harune Massey and Jeevan Haathi directed by Meenu and Farjad.  Matteela has recently signed up with Dawn Media group to co-produce films in the coming years.

Solothurn Film Festival: The Solothurn Film Festival (SFT) is the most important festival for Swiss film productions.  Founded in 1966 in the Swiss city of Solothurn, the annual festival presents a representative selection of Swiss feature, documentary and short film productions.  In a series of public talks and panel discussions, the audience meets with members of the film industry to discuss the screened films and the culture of film in Switzerland.  With over 60,000 visitors every year, the Solothurn Film Festival ranks among the most renowned cultural events in the country.

Supporting paragraphs: Mazhar Zaidi Locarno Festival
Answer: 1946