Question: R. G. Springsteen and Zheng Junli were both what?

Context paragraphs:
R. G. Springsteen: Robert G. Springsteen (September 8, 1904 – December 9, 1989) was an American director of Hollywood B movies and television shows.  He was most often credited on screen as R. G. Springsteen.

The Spring River Flows East: The Spring River Flows East, also translated as The Tears of Yangtze, is a 1947 Chinese film directed by Cai Chusheng and Zheng Junli and is generally considered one of the great Chinese films of the period.  The Hong Kong Film Awards ranked it in its list of greatest Chinese language films ever made at number 27.  Produced by Kunlun Film Company, the film is over three hours long and consists of two parts, "Eight War-Torn Years" (八年離亂) and "The Dawn" (天亮前后), released one after the other the same year.

Zheng Junli: Zheng Junli (December 6, 1911 – April 23, 1969) was an actor and director born in Shanghai and who rose to prominence in the golden age of Chinese Cinema.  His films "The Spring River Flows East" and "Crows and Sparrows" are widely considered classics of Chinese cinema.  He was severely persecuted during the Cultural Revolution and died in prison.

Crows and Sparrows: Crows and Sparrows () is a 1949 Chinese film made by Kunlun Studios on the eve of the Communist victory and directed by Zheng Junli.  Notable for its extremely critical view of corrupt Nationalist bureaucrats, the film was made as Chiang Kai-shek's Nanjing-based government was on the verge of collapse, and was not actually released until after the Chinese Civil War had ended.

The Red Menace (film): The Red Menace (reissue title Underground Spy) is a 1949 film noir drama film directed by R. G. Springsteen starring Robert Rockwell and Hannelore Axman.

Shi Dongshan: Shi Dongshan (December 29, 1902 – February 23, 1955), born Shi Kuangshao, was one of the most prominent film directors and screenwriters in pre-Communist China, together with Chen Liting, Cai Chusheng, and Zheng Junli.  His most notable film was "Eight Thousand Li of Cloud and Moon", released in 1947.  He served in the Communist government after 1949, but was later persecuted and committed suicide in 1955.

Chen Liting: Chen Liting (; 20 October 1910 – 27 August 2013) was a Chinese playwright, drama and film director, screenwriter, and film theorist.  He was one of the most prominent film directors and screenwriters in pre-Communist China, together with Shi Dongshan, Cai Chusheng, and Zheng Junli.  His most famous film was "Women Side by Side" (1949).

He Rides Tall: He Rides Tall is a 1964 American Western film directed by R. G. Springsteen and written by Charles Irwin and Robert Creighton Williams.  The film stars Tony Young, Dan Duryea, Jo Morrow, Madlyn Rhue, R. G. Armstrong and Joel Fluellen.  The film was released on February 26, 1964, by Universal Pictures.

Hellfire (1949 film): Hellfire is a 1949 American Trucolor Western film directed by R. G. Springsteen starring Wild Bill Elliott, Marie Windsor, Forrest Tucker and Jim Davis

Treasure voyages: In Chinese history, the treasure voyages were the seven Ming-era maritime voyages of the treasure fleet between 1405 and 1433.  The Yongle Emperor initiated the construction of the treasure fleet in 1403.  The grand project resulted in seven far-reaching ocean voyages to the coastal territories and islands in and around the South China Sea, the Indian Ocean, and beyond.  Admiral Zheng He was commissioned to command the treasure fleet for the expeditions.  Six of the voyages occurred during the Yongle reign (r. 1402–24), while the seventh voyage occurred under the Xuande reign (r. 1425–1435).  The first three voyages reached up to Calicut on India's southwestern coast, while the fourth voyage went as far as Hormuz in the Persian Gulf.  Afterwards, the fleet made voyages farther away to the Arabian Peninsula and East Africa.

Supporting paragraphs: R. G. Springsteen Zheng Junli
Answer: director