Title: Athirathan (film)
Content:  Athirathan is a 1991 Indian Malayalam film, directed by Pradeep Kumar. The film stars Suresh Gopi, Geetha, Jagathy Sreekumar and KPAC Lalitha in the lead roles. The film has musical score by Johnson.
Title: Athirathan (film)
Content:  The music was composed by Johnson and the lyrics were written by Bichu Thirumala.
Title: Athirathan (film)
Content: Suresh Gopi as Sethu ; Geetha as Devu ; Jagathy Sreekumar as Shivaraman ; KPAC Lalitha as Meenakshi ; Suchitra as Nimmy ; Siddique as James ; Risabava as Benny Fernandez ; Vijayaraghavan as Chandru ; Prathapachandran as Andrew Georeg ; Rajan P. Dev as Govinda Bhattacharya ; James as Raghavan ; M. S. Thripunithura as Advocate ; Paravoor Bharathan as Kochettan ; Zainuddin as Abu ; Keerikkadan Jose as Gunda 
Title: Athiratha
Content:  Athiratha (ಅತಿರಥ) is a 2017 Indian Kannada action thriller film directed by Mahesh Babu. It stars Chethan Kumar and Latha Hegde, with Kabir Duhan Singh and Sadhu Kokila in supporting roles. The score and soundtrack are by Suraag and the cinematography is by Jai Anand. The film is a remake of Tamil film Kanithan (2016).
Title: Athiran
Content:  Title of the film was announced on 17 February 2019 alongside the first official poster. Athiran marks the directorial debut of Vivek. According to Vivek, the story was formed based on a real-life account combined with inspiration from a short story written by Edgar Allan Poe. He said: "the story idea came up after I went to a Kalari school in Thrippunithura, Kerala, where autistic students were performing with the same prowess as the school's other students". The screenplay was written by P. F. Mathews. When Vivek briefed the story idea to Faasil two-and-a-half years ago, it was Faasil who introduced him Mathews. Vivek himself titled the film. Vivek cites Ulladakkam, Sesham, and Devadoothan as the major inspirations for the film, and were also inspired by Shutter Island, A Cure for Wellness, and Stonehearst Asylum. Principal photography began in November 2018. The film was extensively shot in Ooty, Tamil Nadu. Filming was completed on 21 January 2019. It took 55 days to complete the filming process. The film is set in a psychiatric facility.
Title: Athirathram (film)
Content:  The music was composed by M. S. Viswanathan and the lyrics were written by Kavalam Narayana Panicker.
Title: Athiran
Content:  Athiran is a 2019 Indian Malayalam-language psychological thriller film directed by Vivek and scripted by P. F. Mathews from a story by Vivek. It was produced by Raju Mathew through his production company Century Investments. The film stars Fahadh Faasil and Sai Pallavi. The film features original songs composed by debutant P. S. Jayhari and a musical score by Ghibran. The story is set in a psychiatric asylum. It was reported to have been inspired by the 2014 movie Stonehearst Asylum. Principal photography began in November 2018 was completed in January 2019 in a 55-day shoot, extensively shot in Ooty. The film was released on 12 April 2019.
Title: Athiratha
Content:  The film's background score and the soundtracks were composed by debut artist Suraag, son of Sadhu Kokila. The music rights were acquired by Loop Entertainment.
Title: Athiran
Content: Fahadh Faasil as Dr. Mooledatthu Kannan Nair / Vinayan, Nitya's fiancee and love interest ; Sai Pallavi as Nadakkal Kovilakatthu Karthika Thirunaal Nithya Lakshmi, Vinayan's love interest and fiancee ; Atul Kulkarni as Dr. Benjamin Diaz ; Renji Panicker as Nadakkal Kovilakatthu Jaya Narayana Varma, Nithya's father ; Sudev Nair as Jeevan Thomas ; Shanthi Krishna as Nadakkal Kovilakatthu Lakshmi, Nithya's aunt, Jayanarayana Varma's sister and Vinayan's mother ; Lena as Renuka ; Nandhu as Avarachan ; Leona Lishoy as Anna Maria ; Surabhi Lakshmi as Vadakkedath Kamala Lakshmi ; Vijay Menon as Professor P. Subrahmanya Iyer ; Prakash Raj as Dr. M. K. Nair (cameo) 
Title: Arthanari
Content:  The film is directed by Sundarra Elangovan, a former assistant of Bala. Arundhati plays an encounter specialist named Sathyapriya while debutant Ramkumar plays a civil engineer who gets involved in Sathyapriya's case. To prepare for her role, Arundhati watched films from the same genre including Blue Steel, The Bone Collector and Mardaani. The film was titled as Arthanari because both the male and female characters have equal importance. Nassar plays a supporting role while Rajendran plays the antagonist.

Question: Who was the screenwriter for Athirathan?
Answer: Pradeep Kumar.