The 45-year-old star is set to play the female leader in Richard Keddie’s tele-movie, The Stalking of Julia Gillard.
“I’ve spent a little bit of time with her, enough to say it was very enjoyable and I look forward to doing more,” Griffiths told The Daily Telegraph.
“I am a bit daunted but it is not like I’ve signed on to play the young Marilyn Monroe where every year passes I go, ‘I’ve really got to get that under my belt’ whereas with Julia I feel like I’ve got a few years.”
The former Six Feet Under actress will appear on Channel Nine’s drama House Husbands this year.