Question: Which film began production first, A Wrinkle in Time or The Fighting Prince of Donegal?

Context paragraphs:
Aatank: Aatank is a 1996 Bollywood film starring Dharmendra, Vinod Mehra, Hema Malini, Amjad Khan, Ravi Kissen and Nafisa Ali.  It is inspired by the Hollywood film "Jaws" as it has a sub-plot with a killer shark.  The film began production in the mid 80s and was delayed for several years and released in 1996.  By the time of its release, two of its cast members Vinod Mehra and Amjad Khan had died.  Most of the movie feature a younger Dharmendra and Hema Malini but one scene features a much older Dharmendra and Hema Malini resulting in a continuity error.  As Amjad Khan expired in 1992, the dubbing for his voice has been done by a mimic artist.

Tharai Thappattai: Tharai Thappattai or "Thaarai Thappattai" is a 2016 Tamil musical art film written, produced and directed by Bala.  The film features Sasikumar and Varalaxmi Sarathkumar in the leading roles, while Ilaiyaraaja composes the film's music based on karakattam.  This film also happens to be Ilaiyaraaja's 1000th film.  The film began production in 2013 and released on 14 January 2016.  Ilaiyaraaja won the National Film Award for Best Background Score at the 63rd National Film Awards.

The Fighting Prince of Donegal: The Fighting Prince of Donegal is a 1966 Walt Disney Productions adventure film starring Peter McEnery and Susan Hampshire, based on the novel "Red Hugh: Prince of Donegal" by Robert T. Reilly.  It was released by the Buena Vista Distribution Company.

A Wrinkle in Time (2018 film): A Wrinkle in Time is an upcoming American science-fiction fantasy adventure film directed by Ava DuVernay and written by Jennifer Lee.  It is based on the 1963 novel of the same name by Madeleine L'Engle.  The film stars Oprah Winfrey, Reese Witherspoon, Mindy Kaling, Storm Reid, Zach Galifianakis and Chris Pine.  Principal photography on the film began on November 2, 2016, in Los Angeles, California.

Sangili Bungili Kadhava Thorae: Sangili Bungili Kadhava Thorae (English: Sangili Bungili, open the door) is an Indian Tamil horror comedy film written and directed by Ike, grandson of 'Nadigavel' M. R. Radha and produced by Fox Star Studios and Atlee under his production house 'A for Apple Productions'.  The film stars Jiiva, Sridivya and Soori in the leading roles.  Featuring music composed by Vishal Chandrasekhar, the film began production during March 2016, and was released on 19 May 2017.  The film opened to positive reviews and became a hit at the box office.

The Warlord of Mars: The Warlord of Mars is a science fantasy novel by American writer Edgar Rice Burroughs, the third of his Barsoom series.  Burroughs began writing it in June, 1913, going through five working titles; "Yellow Men of Barsoom", "The Fighting Prince of Mars", "Across Savage Mars", "The Prince of Helium", and "The War Lord of Mars".

Kuppathu Raja (2017 film): Kuppathu Raja (English: King of the Slums ) is an upcoming Tamil comedy drama film directed by Baba Bhaskar.  The film features G. V. Prakash Kumar and Parthiban in the lead roles.  Featuring music also composed by Prakash Kumar and cinematography by Mahesh Muthuswami, the film began production during March 2017.  Producer is Saravanan and Siraj S Focuss production.  The movie is scheduled for Christmas release

Velainu Vandhutta Vellaikaaran: Velainu Vandhutta Vellaikaaran is a 2016 Tamil political comedy film written and directed by Ezhil and produced by Vishnu for Vishnu Vishal Studios, Ezhil and Rajan Natraj for Ezhilmaaran Production alone with Fox Star Studios.  The film stars Vishnu and Nikki Galrani in the leading roles.  Featuring music composed by C. Sathya, the film began production during August 2015, and had a worldwide release on 3 June 2016.  The movie was Vishnu's fourth successful film after "Mundasupatti", "Jeeva" and "Indru Netru Naalai".  The movie became successful and grossed more than 55.4 million at the worldwide box office against a budget of 28 million.

Sasanam: Sasanam is a 2006 Tamil drama film directed by Mahendran.  The film set in the Chettinadu backdrop features Arvind Swamy, Gouthami and Ranjitha in leading roles, while Balabharathi composes the music and Nambiyathiri handles cinematography.  The film began production in the mid-1990s but was only released in 2006 due to production trouble, with all three of the lead actors retired at the time of release.

Oru Nalla Naal Paathu Solren: Oru Nalla Naal Paathu Solren (English: I'll let you know when the time is right) is an upcoming Tamil adventure comedy drama film written and directed by Arumuga Kumar.  Vijay Sethupathi and Gautham Karthik appear in the lead roles, while Niharika Konidela and Ramesh Thilak play other pivotal roles.  The film began production in February 2017.

Supporting paragraphs: A Wrinkle in Time (2018 film) The Fighting Prince of Donegal
Answer: The Fighting Prince of Donegal