Question: Which Australian actress and singer starred in Zach Snyder's first film Sucker Punch?

Context paragraphs:
Rocket: Robot on Wheels: Rocket: Robot on Wheels is a platformer video game developed by Sucker Punch Productions and published by Ubisoft for the Nintendo 64.  The game was released in North America on October 31, 1999, and in Europe on December 17, 1999.  This was the first game developed by Sucker Punch.  In the game the player takes control over Rocket, the titular robot.  "Rocket: Robot on Wheels" is notable for being the first game on a home platform to use a realistic physics engine to drive the gameplay.  The player is required to solve puzzles dealing with mass, inertia, friction, and other physical properties.  The game had been developed under the title "Sprocket" until three months before its release, when it was changed due to a trademark conflict with Game Sprockets.

Donkey Punch (novel): Donkey Punch (also referred to as Donkey Punch: A Cal Innes book and Sucker Punch) is a crime novel by Scottish author Ray Banks.  It was first published in the United Kingdom by Edinburgh-based company Birlinn Ltd in 2007, and again by the same publisher in 2008.  In the United States it was published by Houghton Mifflin Harcourt in 2009, titled "Sucker Punch", and was reprinted in 2011.

Sucker Punch (2011 film): Sucker Punch is a 2011 American fantasy steampunk action film directed by Zack Snyder and co-written by Snyder and Steve Shibuya.  It is Snyder's first film based on an original concept.  The film stars Emily Browning, as a young woman who is committed to a mental institution.  In order to cope, she envisions the asylum as a brothel and teams up with four dancers/prisoners to escape before she undergoes a lobotomy.  As she collects the items she needs to escape, she enters another level of fantasy, in which the women become strong, experienced warriors.

Emily Browning: Emily Jane Browning (born 7 December 1988) is an Australian actress and singer.

Sly Cooper: Sly Cooper is a series of platform stealth video games for the PlayStation 2, PlayStation 3 and PlayStation Vita.  The series was developed by Sucker Punch Productions for the first three games, and then it was passed on to Sanzaru Games while Sucker Punch continued work on the "Infamous" series.  The first three games were remastered into high-definition for the PlayStation 3 by Sanzaru Games, titled "The Sly Collection".

Abbie Cornish: Abbie Cornish (born 7 August 1982), also known by her stage name Dusk, is an Australian actress and rapper known for her film and television roles, particularly her award-winning lead performance in 2004's "Somersault", and internationally for her role as Fanny Brawne in "Bright Star" and her appearance as Sweet Pea in "Sucker Punch".

Tyler Bates: Tyler Bates (born June 5, 1965) is an American musician, music producer, and composer for films, television, and video games.  Much of his work is in the action and horror film genres, with films like "Dawn of the Dead, 300, Sucker Punch," and "John Wick."  He has collaborated with directors like Zack Snyder, Rob Zombie, Neil Marshall, William Friedkin, Scott Derrickson, and James Gunn.  With Gunn, he has scored every one of the director's films; including "Guardians of the Galaxy", which became one of the highest grossing domestic movies of 2014, and its 2017 sequel.  In addition, he is also the lead guitarist of the American rock band Marilyn Manson, and produced its albums "The Pale Emperor" and "Heaven Upside Down".

Sucker punch: A sucker punch (American English), also known as a coward punch, or cold-cock (American English), is a punch made without warning, allowing no time for preparation or defense on the part of the recipient.  The term is generally used in situations where the way in which the punch has been delivered is considered unfair or unethical.  In practice, this often includes punches delivered from behind.  While the one hit punch and king hit (Australian English) is a different style of one-on-one fighting - pitting one individual against another .  It can be considered as a sucker punch when the recipient isn't expecting it, or if they are unevenly matched by weight - which some people use to help strengthen the amount of force used .

Steve Shibuya: Steve Shibuya is an American screenwriter.  He co-wrote the screenplay for the 2011 film "Sucker Punch", along with director Zack Snyder.

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 "".

Supporting paragraphs: Sucker Punch (2011 film) Emily Browning
Answer: Emily Browning