Question: Which film has the director who is older than the other, One Brief Summer or His Guardian Auto? 

Knowledge 1: John Mackenzie (film director)
John Leonard Duncan Mackenzie( 22 May 1928 – 8 June 2011) was a Scottish film director who worked in British film from the late 1960s, first as an assistant director and later as an independent director himself. [SEP] Knowledge 2: One Brief Summer
One Brief Summer is a 1970 British drama film directed by John Mackenzie.It stars Felicity Gibson and Clifford Evans.It was made at Twickenham Studios. [SEP] Knowledge 3: His Guardian Auto
His Guardian Auto is a 1915 American short silent comedy film, directed by Arthur Ellery and Jack Harvey for the Thanhouser Company.It stars James Cruze, Ethyle Cooke, and Marguerite Snow. [SEP] Knowledge 4: Jack Harvey (director)
John JosephHarvey, also known as Jack Harvey( September 16, 1881 in Cleveland, Ohio- November 9, 1954 in Los Angeles, California) was an American film actor, director and screenwriter, noted for his short films of the silent period.Among his directed films are" A Dog's Love"( 1914)( the first of many collaborations with Shep, a well- trained Collie of the Thanhouser Company)," When Fate Rebelled"( 1915)," Fairy Fern Seed"( 1915)," Kaiser's Finish"( 1918) and his last film" No Babies Wanted"( 1928), accredited as John J. Harvey.He continued to act, but most of his roles after the 1920s were very minor and uncredited in films such as" Cardinal Richelieu"( 1935) and" Anchors Aweigh"( 1945).He also continued to write for films until his death in 1954, the last of which was" City Beneath the Sea"( 1953).
Knowledge 1: His Guardian Auto
His Guardian Auto is a 1915 American short silent comedy film, directed by Arthur Ellery and Jack Harvey for the Thanhouser Company.It stars James Cruze, Ethyle Cooke, and Marguerite Snow. [SEP] Knowledge 2: One Brief Summer
One Brief Summer is a 1970 British drama film directed by John Mackenzie.It stars Felicity Gibson and Clifford Evans.It was made at Twickenham Studios. [SEP] Knowledge 3: John Mackenzie (film director)
John Leonard Duncan Mackenzie( 22 May 1928 – 8 June 2011) was a Scottish film director who worked in British film from the late 1960s, first as an assistant director and later as an independent director himself. [SEP] Knowledge 4: Jack Harvey (director)
John JosephHarvey, also known as Jack Harvey( September 16, 1881 in Cleveland, Ohio- November 9, 1954 in Los Angeles, California) was an American film actor, director and screenwriter, noted for his short films of the silent period.Among his directed films are" A Dog's Love"( 1914)( the first of many collaborations with Shep, a well- trained Collie of the Thanhouser Company)," When Fate Rebelled"( 1915)," Fairy Fern Seed"( 1915)," Kaiser's Finish"( 1918) and his last film" No Babies Wanted"( 1928), accredited as John J. Harvey.He continued to act, but most of his roles after the 1920s were very minor and uncredited in films such as" Cardinal Richelieu"( 1935) and" Anchors Aweigh"( 1945).He also continued to write for films until his death in 1954, the last of which was" City Beneath the Sea"( 1953).
Knowledge 1: John Mackenzie (film director)
John Leonard Duncan Mackenzie( 22 May 1928 – 8 June 2011) was a Scottish film director who worked in British film from the late 1960s, first as an assistant director and later as an independent director himself. [SEP] Knowledge 2: One Brief Summer
One Brief Summer is a 1970 British drama film directed by John Mackenzie.It stars Felicity Gibson and Clifford Evans.It was made at Twickenham Studios. [SEP] Knowledge 3: His Guardian Auto
His Guardian Auto is a 1915 American short silent comedy film, directed by Arthur Ellery and Jack Harvey for the Thanhouser Company.It stars James Cruze, Ethyle Cooke, and Marguerite Snow. [SEP] Knowledge 4: Logan Sandler
Logan Sandler is an American writer and director who is best known for his first feature film" Live Cargo".

Answer: His Guardian Auto