Question: Who directed Watchmen and 300?

full_context: Document 1: Alan Moore: Alan Moore ( ; born 18 November 1953) is an English writer primarily known for his work in comic books including "Watchmen", "V for Vendetta" and "From Hell". Frequently described as the best graphic novel writer in history, he has been widely recognised by his peers and by critics. He has occasionally used such pseudonyms as Curt Vile, Jill de Ray, and Translucia Baboon; also, reprints of some of his work have been credited to The Original Writer when Moore requested that his name be removed.
Document 2: Battle of Thermopylae: The Battle of Thermopylae ( ; Greek: Μάχη τῶν Θερμοπυλῶν , "Machē tōn Thermopylōn") was fought between an alliance of Greek city-states, led by King Leonidas of Sparta, and the Persian Empire of Xerxes I over the course of three days, during the second Persian invasion of Greece. It took place simultaneously with the naval battle at Artemisium, in August or September 480 BC, at the narrow coastal pass of Thermopylae ("The Hot Gates"). The Persian invasion was a delayed response to the defeat of the first Persian invasion of Greece, which had been ended by the Athenian victory at the Battle of Marathon in 490 BC. Xerxes had amassed a huge army and navy, and set out to conquer all of Greece. The Athenian politician and general Themistocles had proposed that the allied Greeks block the advance of the Persian army at the pass of Thermopylae, and simultaneously block the Persian navy at the Straits of Artemisium.
Document 3: The Mindscape of Alan Moore: The Mindscape of Alan Moore is a 2003 documentary film which chronicles the life and work of Alan Moore, author of several acclaimed graphic novels, including "From Hell", "Watchmen" and "V for Vendetta".
Document 4: 300 (film): 300 is a 2006 American epic war film based on the 1998 comic series "300" by Frank Miller and Lynn Varley. Both are fictionalized retellings of the Battle of Thermopylae within the Persian Wars. The film was directed by Zack Snyder, while Miller served as executive producer and consultant. It was filmed mostly with a super-imposition chroma key technique, to help replicate the imagery of the original comic book.
Document 5: United 300: United 300 is an American short film that parodies "United 93" (2006) and "300" (2007). It won the MTV Movie Spoof Award at the MTV Movie Awards 2007. The short was created by Andy Signore along with some of his friends. During his speech, he said, roughly, "The film was not making fun of a tragedy; it was a tribute to those who stood up against tyranny".
Document 6: List of Watchmen characters: "Watchmen" is a twelve-issue comic book limited series created by Alan Moore, Dave Gibbons, and John Higgins, published by DC Comics in 1986 and 1987. "Watchmen" focuses on six main characters: the Comedian, Doctor Manhattan, the Nite Owl, Ozymandias, Rorschach, and the Silk Spectre. These characters were originally based on the Mighty Crusaders and then reworked in an unsolicited proposal to fit superhero properties DC had acquired from Charlton Comics in the early 1980s. Series writer Alan Moore created the main characters to present six "radically opposing ways" to perceive the world, and to give readers of the story the privilege of determining which one was most morally comprehensible.
Document 7: Frank Miller (comics): Frank Miller (born January 27, 1957) is an American comic book writer, novelist, inker, screenwriter, film director, and producer best known for his comic book stories and graphic novels such as "Ronin", "Daredevil: Born Again", "The Dark Knight Returns", "Sin City" and "300".
Document 8: Production of Watchmen: Watchmen is a 2009 film based on the twelve-issue graphic novel series of the same name created by writer Alan Moore, artist Dave Gibbons, and colorist John Higgins, published by DC Comics between 1986 and 1987. The graphic novel's film rights were acquired by producer Lawrence Gordon in 1986. Many problems halted the adaptation's development, with four different studios and various directors and screenwriters being attached to the project through twenty years. In 2006, Zack Snyder, who at the time was filming 'another comic book adaptation', was hired by Warner Bros. to helm "Watchmen". Filming started in 2007, and following deals with two of the previous companies involved in the development—Paramount Pictures was responsible for international distribution rights after budgetary issues in 2004, resulting in a lawsuit by 20th Century Fox. Fox, which was already contacted by Gordon in 1987, received $1 million of the gross—the "Watchmen" adaptation was finally released in March 2009.
Document 9: Zack Snyder: Zachary Edward Snyder (born March 1, 1966) is an American filmmaker, best known for his action, superhero, and science fiction films. Snyder made his feature film debut with the 2004 remake of the horror film "Dawn of the Dead". Since then, he has done a number of comic book and superhero films, including "300" (2007) and "Watchmen" (2009), as well as the Superman film that started the DC Extended Universe, "Man of Steel" (2013) and its follow-ups, "" (2016) and "Justice League" (2017). He also co-wrote the screenplays for "300", "Sucker Punch" and "".
Document 10: Before Watchmen: Before Watchmen is a series of comic books published by DC Comics in 2012. Acting as a prequel to the 1986 12-issue "Watchmen" limited series by writer Alan Moore and artist Dave Gibbons, the project consists of eight limited series and one one-shot (though two were initially planned) for a total of 37 issues.
Document 11: Blade (film series): The Blade films are based on the fictional Marvel Comics character of the same name, portrayed by Wesley Snipes. They were written by David S. Goyer, based on the comics by Marv Wolfman, and Gene Colan. The three films were directed by Stephen Norrington, Guillermo del Toro and Goyer respectively, and distributed by New Line Cinema.
Document 12: Watchmen (film): Watchmen is a 2009 American superhero film directed by Zack Snyder, based on the 1986–87 DC Comics limited series of the same name by Alan Moore and Dave Gibbons. It stars an ensemble cast of Malin Åkerman, Billy Crudup, Matthew Goode, Carla Gugino, Jackie Earle Haley, Jeffrey Dean Morgan, and Patrick Wilson. A dark satirical and dystopian take on the superhero genre, the film is set in an alternate history in the year 1985 at the height of the Cold War between the United States and the Soviet Union, as a group of mostly retired American superheroes investigates the murder of one of their own before uncovering an elaborate and deadly conspiracy, while their moral limitations are challenged by the complex nature of the circumstances.
Document 13: Saturday Morning Watchmen: Saturday Morning Watchmen is a Newgrounds and YouTube viral video published on March 5, 2009, the day before the release of the live-action "Watchmen" film. The video parodies the DC Comics limited series "Watchmen" by Alan Moore and Dave Gibbons, claiming to be a clip from a 1980s Saturday morning cartoon based on the series. The video was animated, written, composed and sung by Harry Partridge and voiced by Partridge, Joshua Tomar, and Hans Van Harken. It pokes fun at the tendency of the campy nature of 1980s animation to sanitize superheroes and other violent themes. It features many of the mainstays of 1980s cartoon films, like catchy rock themes, and references to the openings of "Thundercats", "Teenage Mutant Ninja Turtles", "Jem", "The Legend of Zelda", and "Scooby-Doo". On the Newgrounds site, Partridge stated the video "combines two huge passions of mine, one being the comic genius that is Alan Moore and the other being kids' programming from the late '80s, which I would say is my biggest animation inspiration."
Document 14: Watchmen: Watchmen is an American comic-book limited series published by DC Comics in 1986 and 1987, and collected in 1987. The series was created by a British collaboration consisting of writer Alan Moore, artist Dave Gibbons, and colorist John Higgins. "Watchmen" originated from a story proposal Moore submitted to DC featuring superhero characters that the company had acquired from Charlton Comics. As Moore's proposed story would have left many of the characters unusable for future stories, managing editor Dick Giordano convinced Moore to create original characters instead.
Document 15: 300: Rise of an Empire: 300 Rise of an Empire is a 2014 American epic historical fantasy war film directed by Noam Murro. It is a follow-up to the 2006 film "300", taking place before, during and after the main events of that film and based on the Battle of Artemisium and the Battle of Salamis. It is based on the as-yet-unreleased Frank Miller graphic novel "Xerxes". Zack Snyder, who directed and co-wrote the original film, acts as writer and producer on "Rise of an Empire".
ground_truth: Zack Snyder