Question: Do director of film The Trygon Factor and director of film Riders of the Northland have the same nationality?

<P0-S0> The Trygon Factor is a 1966 British- West German crime film directed by Cyril Frankel and starring Stewart Granger, Susan Hampshire and Robert Morley. <P0-S1> It is one of the films based on works by Edgar Wallace of the 1960s and its German title is Das Geheimnis der weißen Nonne/" Mystery of the White Nun". <P0-S2> The film is based on the Edgar Wallace novel" Kate Plus Ten". <SEP> <P1-S0> William A. Berke( October 3, 1903 – February 15, 1958) was an American film director, producer and screenwriter. <P1-S1> He directed nearly 90 films between 1934 and 1958. <P1-S2> He also produced nearly 80 films between 1933 and 1958. <P1-S3> He was born in Milwaukee, Wisconsin and died in Los Angeles, California. <P1-S4> Richard Fleischer later recalled Berke" was known as King of the B's. <P1-S5> For years and years he had made nothing but pictures with ten or twelve day shooting schedules, minuscule budgets of about$ 100,000 and no stars. <P1-S6> Without bothering with editing or any postproduction chores and with short shooting schedules, he was able to squeeze in eight or ten pictures a year. <P1-S7> And he was going nuts". <P1-S8> According to Fleischer, Berke eventually pestered RKO executives enough to be assigned an A picture with a long shooting schedule and stars and he still shot it in twelve days. <SEP> <P2-S0> Cyril S. Frankel( 28 December 1921 – 7 June 2017) was a British film and television director. <P2-S1> His career in television began in 1953 and he directed for over 30 TV programmes until 1990. <P2-S2> He was born in Stoke Newington, London. <P2-S3> He directed many episodes of popular British TV shows, such as" The Avengers", and the pilot episodes of the ITC Entertainment shows" Randall and Hopkirk( Deceased)" and" Department S" in 1969. <P2-S4> In 1970, he directed" Timelash", an episode of" UFO", which he described as a very interesting script and one of his personal favourites. <P2-S5> Frankel also directed many documentaries and feature films, including" Never Take Sweets from a Stranger"( 1960) and" School for Scoundrels"( 1960; taking over from Robert Hamer, who was credited as sole director). <P2-S6> One of his films," Man of Africa"( 1953)- the first film to feature a cast made up of relatively unknown black actors- was not released and was lost for some time. <P2-S7> A complete copy has since been discovered and has been screened at a number of international film festivals. <P2-S8> In terms of documentaries, Frankel supervised some of the films that were broadcast for the BBC arts series" Monitor"( 1958 – 65), among which was the first ballet programme to be filmed and edited to the choreography. <P2-S9> Prior to his retirement, he became the ceramics expert for Bonhams auction house. <P2-S10> A book," Modern Pots: Hans Coper, Lucie Rie and their Contemporaries- The Lisa Sainsbury Collection", was co-authored by Frankel and published in 2000. <P2-S11> His memoir," Eye to Eye", was published by Bank House Books in 2009. <P2-S12> Frankel died on 7 June 2017 at the age of 95. <SEP> <P3-S0> Ian Barry is an Australian director of film and TV. <SEP> <P4-S0> Peter Levin is an American director of film, television and theatre. <SEP> <P5-S0> Riders of the Northland is a 1942 American Western film directed by William Berke and written by Paul Franklin. <P5-S1> The film stars Charles Starrett, Russell Hayden, Shirley Patterson, Cliff Edwards, Bobby Larson and Lloyd Bridges. <P5-S2> The film was released on June 18, 1942, by Columbia Pictures.