Are Charles Reisner and Adoor Gopalakrishnan both film directors ? 
yes
Charles Reisner
Charles "Chuck" Reisner (14 March 1887 – 24 September 1962) was an American film director and actor of the 1920s and 1930s.
Adoor Gopalakrishnan
Adoor Gopalakrishnan is an Indian film director, script writer, and producer.
 Adoor Gopalakrishnan had a major role in revolutioning Malayalam cinema during the 1970s and is regarded as one of the most notable filmmakers of India.
 Adoor's first film "Swayamvaram" (1972, script by K.P Kumaran the director of one of the best Indian film " Athidhi ".)
 pioneered the new wave cinema movement in Kerala along with " Olavum Theeravum " (1970) and " Athidhi "(1974).
 Most of his films go to festivals around the world, and are released in Kerala.
 All the eleven films he directed, from "Swayamvaram" to "Oru Pennum Randaanum" (2008), were screened at several international film festivals and won him several national and international awards.
 He won National Film Awards 16 times, Kerala State Film Awards 17 times and also won several international film awards.
 He won the prestigious British Film Institute Award for "Elippathayam" (1981).
 Adoor received the Padma Shri in 1984 and the Padma Vibhushan in 2006.
 The Nation honoured Adoor for his valuable contributions to Indian cinema by awarding him the highest cinema award of India, the Dadasaheb Phalke Award for the year 2004.
Mankada Ravi Varma
Mankada Ravi Varma (4 June 1926 – 22 November 2010) was an Indian cinematographer and director who worked in Malayalam cinema.
 He is exclusively known for his association with renowned film-maker Adoor Gopalakrishnan.
 He has associated with other major directors such as G. Aravindan and P. N. Menon.
 He has also directed two films.
 He has won two National Film Awards and seven Kerala State Film Awards in various categories. N. L. Balakrishnan
Narayanan Lakshmi Balakrishnan (born Velayudhan) (17 April 1942 – 25 December 2014), commonly known as N. L. Balakrishnan, was an Indian film still photographer and actor who worked in Malayalam cinema.
 He worked as a still photographer in about 170 films and has associated with great directors including G. Aravindan, John Abraham, Adoor Gopalakrishnan, P. Padmarajan, Bharathan and K. G. George.
 He was an actor, with 180 credits to his name, and has also worked as a photo journalist with "Kerala Kaumudi". Swayamvaram
Swayamvaram (English: "One's Own Choice" ) is a 1972 Indian Malayalam-language drama film co-written and directed by Adoor Gopalakrishnan, starring Madhu and Sharada in the lead roles.
 Notable smaller roles were played by Thikkurisi Sukumaran Nair, Adoor Bhavani, K. P. A. C. Lalitha, and Bharath Gopi.
 The film depicts the life of a couple—Vishwam (Madhu) and Sita (Sharada)—who have married against their parents' wishes and want to start a new life at a new place.
 The title is an allusion to the ancient Indian practice of a girl of marriageable age choosing a husband from among a list of suitors. Chelangatt Gopalakrishnan
Chelangatt Gopalakrishnan (June 6, 1932 - June 4, 2010) was born in Cherthala Alappuzha dist.
 in Kerala to Sri Nediyedathu Kesava Pillai and Thrikkeparambil Ammukkutti Amma.
 After graduation, he started his career as a journalist in a regional newspaper; Malayali.
 Later he worked for some other newspapers including Mathrubhumi.
 During this time, he established his own name in the film journalism.
 Several forgotten personalities including J.C. Daniel, the father of Malayalam Cinema, have been disclosed before readers and public by him.
 During this time he had released several books.
 Most of them are about cinema and its history.
 The historical narrations of cinema have been started from the birth of world cinema till the contemporary Malayalam films.
 The renowned Malayalam Film Maker Adoor Gopalakrishnan in his book Cinemayude Lokam, which won many awards including the award from Government of India says ; "The history of Malayalam Cinema is not started with stars born with fortunes, from sky.
 But, it is the tearful story of some, who experimented with their lives and assets.
 Most of the experiments had been tragedies.
 We got that history from the articles written by Chelangatt Gopalakrishnan.
 S. Guptan Nair called Chelangatt Gopalakrishnan, the Chief Architect of Malayalam Film Literature and Journalism.
 He was in the Kerala State Film Awards Jury for several years.
 Many books related with novel, biographies, history and technical aspects of film making have been written by him.
 He had run a film studio named 'Ajanta Studio' at Aluva.
 Many classical films including 'Olavum Theeravum' written by M.T. Vasudevan Nair have been filimized at this studio.
 He had written more than 20 books about cinema alone.
 Vincent Muthal Vincent Vare, Mukhathodu Mukham, The History of World Cinema, The History of Indian Cinema, The History of Malayalam Cinema, The History of Film Persons in Kerala, The History of Malayalam Journalism etc., are few among them.
 He was a regular writer about many of the prominent periodicals in Malayalam language. Mathilukal (film)
Mathilukal (English: "Walls") is a 1990 Indian feature film written, directed and produced by Adoor Gopalakrishnan based on the autobiographical novel of the same name by Vaikom Muhammad Basheer.
 The film focusses on the prison life of Vaikom Muhammad Basheer and the love between him and Narayani, a female inmate of the prison, who remains unseen throughout the film.
 Mammootty plays the role of Vaikom Muhammad Basheer while K. P. A. C. Lalitha gives voice to Narayani.
 The film was well received upon screening at the Venice Film Festival, and won four awards at the National Film Awards in 1990. Vijaya Bhaskar
Vijaya Bhaskar (; 1924–2002) was an Indian music director and composer who composed music for several mainstream and experimental feature films in the Kannada film industry.
 Scoring music for over 600 feature films, Bhaskar worked in Tamil, Telugu, Malayalam, Marathi, Tulu and Konkani language films as well.
 He was a part of all of popular Kannada film director KSL Swamy's (Ravi) movies and was also known for his association with acclaimed directors Puttanna Kanagal and Adoor Gopalakrishnan. Elippathayam
Elippathayam (Translation: The Rat Trap) is a 1981 Malayalam film written and directed by Adoor Gopalakrishnan.
 It is critically considered by many to be one of the most outstanding pieces in Adoor Gopalakrishnan's filmography.
 It stars Karamana Janardanan Nair, Sharada, Jalaja, and Rajam K. Nair Manakala
Manakala is a town in Pathanamthitta district, Kerala state, India.
 It is located in Adoor Thaluk.Manakala is the hometown of the prominent film director Adoor Gopalakrishnan.