Question: Metro-Goldwyn-Mayer contract star Arlene Dahl starred in the film "Ambush" in 1950, which was based on a story of the same name written by who?
Related documents: [0]  [DOC] Ambush is a 1950 western film directed by Sam Wood and starring Robert Taylor, John Hodiak and Arlene Dahl. This was the last film directed by Sam Wood. The plot is based on the serial story "Ambush" by Luke Short in "The Saturday Evening Post" (25 Dec 1948–12 Feb 1949). [END] 
[1]  [DOC] Arlene Carol Dahl (born August 11, 1925) is an American actress and former Metro-Goldwyn-Mayer contract star, who achieved notability during the 1950s. She has three children, the eldest of whom is actor Lorenzo Lamas. [END] 
Answer: 
Luke Short
Luke Short