Question: Who wrote the screenplay for the Alfred Hitchcock movie that Eva Marie Saint acted in?
Context: Alfred Hitchcock's Anthology – Volume 4 is the fourth installment of "Alfred Hitchcock's Anthology", one of the many Alfred Hitchcock story collection books; edited by Eleanor Sullivan.  Originally published in hardcover as "Alfred Hitchcock's Tales to Scare You Stiff" in 1978, the book includes 26 short stories and a short novel called "The Graveyard Shift" by William P. McGivern.  Also, within the 26 short stories is "The Green Heart" by Jack Ritchie which was made into the 1971 film "A New Leaf". The following is a list of the 93 episodes of the television program The Alfred Hitchcock Hour, which is a continuation of the program "Alfred Hitchcock Presents" (1955–60).  "The Alfred Hitchcock Hour", like its predecessor, is an anthology series in the thriller genre.  NBC renamed the program when they extended its running-time from about 25 minutes to about 50 minutes.  Both programs were hosted by Alfred Hitchcock, whose directorial work in thriller films is extremely influential.  Hitchcock directed only one episode of "The Alfred Hitchcock Hour": "I Saw The Whole Thing" (Season 1, episode 4). North by Northwest is a 1959 American spy thriller film directed by Alfred Hitchcock and starring Cary Grant, Eva Marie Saint and James Mason. Karin Dor (born 22 February 1938) is a German actress who became popular in the 1960s playing heroines in Edgar Wallace and Karl May movies.  She starred in the James Bond movie "You Only Live Twice" and the Alfred Hitchcock movie "Topaz".  Today, she is performing mainly stage roles with some films. Eva Marie Saint ( ; born July 4, 1924) is an American actress and producer.  In a career spanning 70 years, she is known for starring in Elia Kazan's "On the Waterfront" (1954), for which she won an Academy Award for Best Supporting Actress, and Alfred Hitchcock's "North by Northwest" (1959).  She received Golden Globe and BAFTA Award nominations for "A Hatful of Rain" (1957) and won a Primetime Emmy Award for the television miniseries "People Like Us" (1990).  Her film career also includes roles in "Raintree County" (1957), "Exodus" (1960), "The Russians Are Coming, the Russians Are Coming" (1965), "Grand Prix" (1966), "Nothing in Common" (1986), "Because of Winn-Dixie" (2005), "Superman Returns" (2006), and "Winter's Tale" (2014). Alfred Hitchcock's Anthology – Volume 1 is the first installment of "Alfred Hitchcock's Anthology", one of the many Alfred Hitchcock story collection books; edited by Eleanor Sullivan.  Originally published in hardcover in 1976 as "Alfred Hitchcock's Tales to Keep You Spellbound", the book is a collection of 30 stories originally published in "Alfred Hitchcock's Mystery Magazine". Danielle Steel's Palomino is a 1991 television movie based on a novel by Danielle Steel about the romance between a photographer and a cowboy.  A subplot involves a romance between characters played by Rod Taylor and Eva Marie Saint, who acted together years earlier in "Raintree County" (1957) and "36 Hours" (1964).  The film aired on October 21, 1991 on NBC. Alfred Hitchcock's Anthology – Volume 5 is the fifth installment of "Alfred Hitchcock's Anthology", one of the many Alfred Hitchcock story collection books; edited by Eleanor Sullivan.  Originally published in hardcover as "Alfred Hitchcock's Tales to Send Chills Down Your Spine" in 1979, the book contains 29 short stories by many well-known crime fiction novelists. North by Northwest is a 1959 American thriller directed by Alfred Hitchcock and starring Cary Grant, Eva Marie Saint and James Mason.  The screenplay was by Ernest Lehman, who wanted to write "the Hitchcock picture to end all Hitchcock pictures". Alfred Hitchcock's Anthology – Volume 2 is the second installment in the "Alfred Hitchcock's Anthology" series.  Originally published in hardcover as "Alfred Hitchcock's Tales to Take Your Breath Away" in 1977, this issue contains 29 stories from "Alfred Hitchcock's Mystery Magazine" that, by the editors, were believed to be the best published the preceding year (1977).
Answer: Ernest Lehman