Peter Hamel
Peter Hamel( 1911–1979) was a German screenwriter and a director of film and television.
He appeared as himself in the 1948 comedy" Film Without a Title".
He is the father of the composer Peter Michael Hamel.
Paul Brooke
Paul Brooke( born 22 November 1944) is a retired English actor of film, television and radio.
He is the father of actor Tom Brooke.
Obata Toramori
He was the father of Obata Masamori.
Yasuichi Oshima
He is the father of manga artist Towa Oshima.
Inoue Masaru (bureaucrat)
Viscount was the first Director of Railways in Japan and is known as the" father of the Japanese railways".
Rooftree
Rooftree  is a 1967 Swedish drama film directed by Jörn Donner.
It is based on Sivar Arnér's 1963 novel "Tvärbalk".
Jörn Donner
Jörn Johan Donner (born 5 February 1933 in Helsinki, Finland) is a Swedish-speaking Finnish writer, film director, actor, producer, politician, founder of Finnish Film Archive and a member of the Donner family.
He is the son of the linguist Kai Donner.
Jörn Donner has for long periods lived and worked in Sweden, and has, among other things, served as director of the Swedish Film Institute.
In 1979, he was a member of the jury at the 29th Berlin International Film Festival.
Internationally Jörn Donner is best known as the producer of Ingmar Bergman's film "Fanny and AlexanderFanny och Alexander", 1982).
In 1984 the movie won a total of four Academy Awards including the award for best foreign language film, making him to date the only Finn to receive an Oscar.
His novel "Far och sonFather and Son") won the Finlandia Prize in 1985.
Donner has been associated with several different political parties, such as SDP and RKP, and has at different times been a member both of the Finnish parliament and the European Parliament.
he was again a member of the Finnish parliament for a short while, after Eva Biaudet resigned to take a position at the OSCE.
Donner has suffered from prostate and lung cancers.
Lars Eliasson
He is the father of the later Member of Parliament Anna Eliasson.
Cleomenes II
Cleomenes II( died 309 BC) was Agiad King of Sparta from 369 to 309 BC.
The son of Cleombrotus I, he succeeded his brother Agesipolis II.
He was the father of Acrotatus I, the father of Areus I, and of Cleonymus, the father of Leonidas II.
Ian Barry (director)
Ian Barry is an Australian director of film and TV.

Question: Who is the father of the director of film Rooftree?
Answer: Kai Donner