Three Strangers
Three Strangers is a 1946 American film noir crime drama directed by Jean Negulesco, written by John Huston and Howard Koch, starring Sydney Greenstreet, Geraldine Fitzgerald, and Peter Lorre, and featuring Joan Lorring and Alan Napier.
Vojtěch Petráček
Vojtěch Petráček( born 17 February 1964 in Prague) is a Czech nuclear physicist and University Lecturer, and since February 2018 has been Rector of the Czech Technical University in Prague( CVUT) in Prague.
Jean Negulesco
Jean Negulesco( born Ioan Negulescu; 29 February 1900( O.S.) – 18 July 1993) was a Romanian- American film director and screenwriter.
He was called" the first real master of CinemaScope".
Tomáš Hudeček
Tomáš Hudeček( born 10 May 1979 in Olomouc) is a Czech university( assoc.) professor and politician.
He is currently the head of the Department of Public Administration and Regional Studies at the Masaryk Institute of Advanced Studies of the Czech Technical University in Prague, a former local( non-party) politician and the Mayor of the Capital City of Prague.
He is married, has two sons, lives alternately in Prague and Ostrava.
In 2010 he was elected to the Municipal Assembly in Prague as a candidate of the TOP 09 party.
On 24 November 2011 he became a member of the executive council of Prague and the Deputy Mayor of Bohuslav Svoboda.
Hudeček was elected deputy mayor of Prague between 24 November 2011 and 23 May 2013, then deputy mayor with the responsibilities of Mayor during the flooding of May and June 2013 days in Prague, and Mayor of Prague between 20 June 2013 and 26 October 2014.
Karel Wellner
Karel Wellner( 5 March 1875 in Unhošť – 14 June 1926 in Olomouc) was a Czech graphic artist, painter, cartoonist, illustrator, art historian and critic.
He was also a secondary school teacher and professor.
He graduated from high school in Prague, and then studied industrial engineering and art in Prague.
He moved to Olomouc in 1902 and was active in illustrating professional literature and as an art historian.
Some of his works were published in Germany.
As a painter he took part in exhibitions in Prague and with the Association of Visual Artists in Moravia.
He was active mainly in graphic art.
He has published several lithographs and etchings of the old city of Olomouc.
Zuzana Justman
Zuzana Justman, born Zuzana Pick( born 20 June 1931), is a Czech- American documentary filmmaker and writer.
She was born in former Czechoslovakia, which she left in 1948 with her mother after surviving two years at Theresienstadt concentration camp during World War II.
She went to New York state for college and graduate school, and settled in New York City afterward.
After working as a writer and translator, in the late 1980s, she started filmmaking.
She has filmed most of her documentaries in the Czech Republic and other European countries, and her topics have been the Holocaust of World War II and postwar history.
Petr Hájek
Petr Hájek (6 February 1940 – 26 December 2016) was a Czech scientist in the area of mathematical logic and a professor of mathematics.
Born in Prague, he worked at the Institute of Computer Science at the Academy of Sciences of the Czech Republic and as a lecturer at the Faculty of Mathematics and Physics at the Charles University in Prague and at the Faculty of Nuclear Sciences and Physical Engineering of the Czech Technical University in Prague.
Henry Kolowrat Jr.
Henry Kolowrat( born August 25, 1933) is an American fencer.
He was born in Prague and currently resides in the United States.
He competed in the team épée event at the 1960 Summer Olympics.
A Trial in Prague
A Trial in Prague is an 83 min colour documentary film directed by Zuzana Justman about a 1952 show trial in Communist Czechoslovakia.
St. Vitus Madonna
The St. Vitus Madonna( c. 1395- 1415) comes from the treasure of St. Vitus Cathedral in Prague and is exhibited in its original frame in the permanent collection of the National Gallery in Prague.

Question: Do both films A Trial In Prague and Three Strangers have the directors that share the same nationality?
Answer: yes