Question: What country of origin does Charles Reisner and Fielder Cook have in common?

Context paragraphs:
The Fortune Hunter (1927 film): The Fortune Hunter is a lost 1927 silent film comedy directed by Charles Reisner and starring Syd Chaplin.  It is based on the 1909 Broadway play "The Fortune Hunter" by Winchell Smith.  It was produced by Warner Brothers who released it with a Vitaphone soundtrack.

The Chief (film): The Chief is a 1933 American pre-Code comedy film directed by Charles Reisner and written by Arthur Caesar and Robert E. Hopkins.  The film stars Ed Wynn, Charles "Chic" Sale, Dorothy Mackaill, William "Stage" Boyd, Effie Ellsler and C. Henry Gordon.  The film was released on November 3, 1933, by Metro-Goldwyn-Mayer.

Chasing Rainbows (1930 film): Chasing Rainbows is a 1930 American Pre-Code romantic musical film directed by Charles Reisner, starring Bessie Love and Charles King, and released by Metro-Goldwyn-Mayer.  The supporting cast features Jack Benny, Marie Dressler, and Polly Moran.  This was Jack Benny's first dramatic role in a motion picture.

The Hollywood Revue of 1929: The Hollywood Revue of 1929 is an American Pre-Code musical comedy film released by Metro-Goldwyn-Mayer.  It was the studio's second feature-length musical, and one of their earliest sound films. Produced by Harry Rapf and Irving Thalberg and directed by Charles Reisner, it features nearly all of MGM's stars in a two-hour revue that includes three segments in Technicolor.  The masters of ceremonies are Conrad Nagel and Jack Benny.

Charles Reisner: Charles "Chuck" Reisner (14 March 1887 – 24 September 1962) was an American film director and actor of the 1920s and 1930s.

Brotherly Love (1928 film): Brotherly Love is a 1928 silent film part-talkie comedy produced and distributed by MGM and directed by Charles Reisner.  It is a starring vehicle for the comedy team of Karl Dane and George K. Arthur.  Young Jean Arthur supports the comedy duo.  While essentially a silent film, the movie had music with sound effects and talking sequences.  Buster Keaton makes an uncredited appearance as a barber.

Fielder Cook: Fielder Cook (March 9, 1923 – June 20, 2003) was an American television and film director, producer, and writer whose 1971 television movie "The Homecoming: A Christmas Story" spawned the series "The Waltons".

The Winning Ticket: The Winning Ticket is a 1935 American comedy film directed by Charles Reisner.  Released by Metro-Goldwyn-Mayer, the film stars Leo Carrillo, Louise Fazenda, and Ted Healy.

Caught Short: Caught Short is a 1930 American pre-Code comedy film directed by Charles Reisner and written by Robert E. Hopkins, Joseph H. Johnson and Willard Mack.  The film stars Marie Dressler, Polly Moran, Anita Page, Charles Morton and Thomas Conlin.  The film was released on May 10, 1930, by Metro-Goldwyn-Mayer.

Student Tour: Student Tour is a 1934 American musical film directed by Charles Reisner and written by Ralph Spence and Philip Dunne.  The film stars Jimmy Durante, Charles Butterworth, Maxine Doyle, Phil Regan, Douglas Fowley and Nelson Eddy.  The film was released on October 5, 1934, by Metro-Goldwyn-Mayer.

Supporting paragraphs: Charles Reisner Fielder Cook
Answer: American