In 2004, Cornish appeared in the award-winning short film "Everything Goes" with Hugo Weaving. She received the Australian Film Institute Award for Best Actress in a Leading Role, Best Actress at the FCCA and IF Awards and Best Breakthrough Performance at the 2005 Miami International Film Festival for her role in "Somersault". Cornish received critical acclaim for her role in "Candy", opposite Heath Ledger. She has also starred in "A Good Year", "" and Kimberly Peirce's "Stop-Loss". In April 2010, Cornish was cast in "Limitless", the film adaptation of the novel "The Dark Fields", directed by Neil Burger and also starring Bradley Cooper and Robert De Niro.