Lung played Carmelita in the short-lived Australian drama series The Cooks. She received her breakthrough role in the film Peaches starring alongside Jacqueline McKenzie and Hugo Weaving. She starred in the movie 48 Shades alongside Victoria Thaine and Richard Wilson. Lung starred in Christopher Smith's Triangle. She starred in the 2012 psychological thriller Crave alongside Josh Lawson, Edward Furlong, and Ron Perlman; the film was directed by Charles de Lauzirika. She plays Lola, the scheming wife of second son Marou Montebello in ABC's 2012 series The Straits. Lung is currently playing Colette Riger, a Teacher, in the television show Wonderland, aired on Channel 10 since 2013.