Question: Who directed the 1945 film Gregory Peck starred in?

Context paragraphs:
Ethan Peck: Ethan Gregory Peck (born March 2, 1986) is an American actor.  He is best known for his work in the ABC Family series "10 Things I Hate About You", where he portrayed Patrick Verona, a role originated by Heath Ledger in the film of the same name.  Peck is the grandson of actor Gregory Peck, and his first wife, Finnish-born Greta Kukkonen.

The Portrait (1993 film): The Portrait is a 1993 American made-for-television drama film adapted from the play "Painting Churches", directed by Arthur Penn, and starring Gregory Peck and Lauren Bacall.  Cecilia Peck, who plays the daughter in the film, is the real-life daughter of actor Gregory Peck and his second wife Veronique Peck.  The film was broadcast on TNT on February 13, 1993.

The Big Country: The Big Country is a 1958 American epic Western film directed by William Wyler and starring Gregory Peck, Jean Simmons, Carroll Baker, Charlton Heston and Burl Ives.  The supporting cast features Charles Bickford and Chuck Connors.  The picture was based on the serialized magazine novel "Ambush at Blanco Canyon" by Donald Hamilton.  and was co-produced by Wyler and Peck.  The opening title sequence was created by Saul Bass.  The film is one of very few pictures in which Heston plays a major supporting role instead of the lead.

The Gunfighter: The Gunfighter is a 1950 American Western film starring Gregory Peck, Helen Westcott, Millard Mitchell and Karl Malden (resuming his film career after a three year hiatus).  This film was directed by Henry King.  It was written by screenwriters William Bowers and William Sellers, with an uncredited rewrite by writer and producer Nunnally Johnson, from a story by Bowers and screenwriter and director Andre DeToth.  The film was the second of King's six collaborations with Peck.

Gregory Peck: Eldred Gregory Peck (April 5, 1916 – June 12, 2003) was an American actor who was one of the most popular film stars from the 1940s to the 1960s.  Peck continued to play major film roles until the late 1980s.  His performance as Atticus Finch in the 1962 film "To Kill a Mockingbird" earned him the Academy Award for Best Actor.  He had also been nominated for an Oscar for the same category for "The Keys of the Kingdom" (1944), "The Yearling" (1946), "Gentleman's Agreement" (1947) and "Twelve O'Clock High" (1949).  Other notable films he appeared in include "Spellbound" (1945), "Roman Holiday" (1953), "Moby Dick" (1956, and its 1998 miniseries), "Pork Chop Hill" (1959), "The Guns of Navarone" (1961), "Cape Fear" (1962, and its 1991 remake), "How the West Was Won" (1962), "The Omen" (1976) and "The Boys from Brazil" (1978).

A Conversation with Gregory Peck: A Conversation with Gregory Peck is a 1999 American documentary film directed by Barbara Kopple.  Kopple followed the actor as he embarked on a live speaking tour throughout the United States reflecting on his life and career.  The film also looks at Peck's home life with his family, as well as his public appearances where he meets such notable individuals as then President of the United States Bill Clinton, then French President Jacques Chirac, and filmmaker Martin Scorsese.  "A Conversation with Gregory Peck" was part of the PBS documentary series "American Masters" and was screened out of competition at the 2000 Cannes Film Festival.  It is featured on a 2005 2-disc collector's edition of "To Kill a Mockingbird".

I Walk the Line (film): I Walk the Line is a 1970 film directed by John Frankenheimer and starring Gregory Peck and Tuesday Weld.  The film is the story of Sheriff Henry Tawes (Peck) who develops a relationship with town girl Alma McCain (Weld).

Dixie Chicks: Shut Up and Sing: Dixie Chicks: Shut Up and Sing (also known simply as Shut Up and Sing) is a 2006 documentary film produced and directed by director Barbara Kopple and Cecilia Peck (daughter of actor Gregory Peck).

Spellbound (1945 film): Spellbound is a 1945 American film noir psychological mystery thriller film directed by Alfred Hitchcock.  It tells the story of the new head of a mental asylum who turns out not to be what he claims.  The film stars Ingrid Bergman, Gregory Peck, Michael Chekhov and Leo G. Carroll.  It is an adaptation by Angus MacPhail and Ben Hecht of the novel "The House of Dr. Edwardes" (1927) by Hilary Saint George Saunders and John Palmer.

Cape Fear (1991 film): Cape Fear is a 1991 American psychological thriller film directed by Martin Scorsese and a remake of the 1962 film of the same name.  It stars Robert De Niro, Nick Nolte, Jessica Lange, and Juliette Lewis, and features cameos from Gregory Peck, Robert Mitchum, and Martin Balsam, who all appeared in the original film.  It was Peck's final theatrical film.  The film tells the story of a convicted rapist who, using mostly his newfound knowledge of the law and its numerous loopholes, seeks vengeance against a former public defender whom he blames for his 14-year imprisonment due to purposefully faulty defense tactics used during his trial.

Supporting paragraphs: Gregory Peck Spellbound (1945 film)
Answer: Alfred Hitchcock