Catherine Martin has become Australia's most prolific Academy Award winner with two Oscars for her dazzling designs for The Great Gatsby.
The acclaimed designer, wife of director Baz Luhrmann, won both best costumes and best production design with set decorator Beverley Dunn.
Having won two Oscars for Moulin Rouge in 2002 - as well as nominations for Romeo + Juliet and Australia - Martin has overtaken the three Oscars won by Orry-Kelly for An American in Paris, Les Girls and Some Like It Hot in the 1950s.
Luhrmann's lavish adaptation of F. Scott Fitzgerald's classic American novel won both Oscars it was nominated for at the 86th Academy Awards. Accepting best production design, Dunn paid tribute to the many technicians who were part of the art department on the movie.
"Believe you me, on Gatsby there were many, many talented technicians who worked on the film," she said.
Martin thanked Karen Murphy, her associate production designer, who missed being included in the nomination despite a campaign by Martin.
"Unfortunately there are very strict rules in the Academy and they're difficult to bend," she said after the nominations were announced.
Accepting best costumes after joking about having her speech tucked in her bra, Martin thanked her "golden girls" who have been working with her for 25 years - and are currently sewing for Strictly Ballroom The Musical - and Luhrmann. "He makes it all possible. He dreams the dream," she said.
Her designs demonstrated the hedonistic glamour of 1920s New York in The Great Gatsby.
For best costumes, Martin was up against the designers for American Hustle (fellow Australian Michael Wilkinson), The Grandmaster, The Invisible Woman and 12 Years A Slave.