This is the only play she's been in, at least the only one I know of.
The play was written by Alex Broun and it was shown at the Seymour Centre Downstairs in Sydney in January as part of Short + Sweet Sydney 2008, directed by Alexandra Byron and starring Helen Sutermeister as Maddie, Maurizio Degliesposti as Ramon and Tabrett Bethell as Stephanie.
Broun wrote this on his website:
"These two plays have also been picking up their share of awards and nominations."
I don't know if he meant that only the plays themselves won awards and received nominations or maybe the actors too.
You can download the script from here: http://www.alexbroun.com.au/pdf/skyandsea.pdf