Brian Johnson (special effects artist)
Brian Johnson( born 1939 or 1940) is a British designer and director of film and television special effects.
Irumbazhikal
Irumbazhikal is a 1979 Indian Malayalam Action.
Drama film, directed by A. B. Raj.
The film stars Prem Nazir, Jayan, Jayabharathi and K. P. Ummer in the lead roles.
The film has musical score by M. K. Arjunan.
It was a box office hit.
Rachel Feldman
Rachel Feldman( born August 22, 1954) is an American director of film and television and screenwriter of television films.
Hanro Smitsman
Hanro Smitsman, born in 1967 in Breda( Netherlands), is a writer and director of film and television.
The Threat (1949 film)
The Threat is a 1949 American film noir directed by Felix E. Feist and starring Michael O' Shea, Virginia Grey, and Charles McGraw.
Ian Barry (director)
Ian Barry is an Australian director of film and TV.
Felix E. Feist
Felix Ellison Feist( February 28, 1910 – September 2, 1965) was an American film and television director and writer born in New York City.
Howard W. Koch
Howard Winchel Koch( April 11, 1916 – February 16, 2001) was an American producer and director of film and television.
Peter Levin
Peter Levin is an American director of film, television and theatre.
A. B. Raj
Antony Basker Raj( born 21 April 1925), also known as A. B. Raj, is an Indian director of Malayalam movies.
Since 1951 to 1960, he directed ten Singalese movies followed by directing 65 Malayalam movies from 1963 till 1984.
He has also directed two Tamil movies.
He is the father of National Award- winning actress Saranya Ponvannan.
She is a leading actress in Tamil cinema.
A. B. Raj was the Second Unit Assistant Director of The Bridge on the River Kwai by David Lean

Question: Do director of film The Threat (1949 Film) and director of film Irumbazhikal share the same nationality?
Answer: no