naomi watts , naomi watts , geoffrey rush and joel edgerton have all made significant contributions to australia through film and television that will no doubt last a lifetime .
but recently uncovered documents from ancestry.com reveal their ancestors have also had a lasting impact on the country through their service and involvement in world war one .
as australia prepares to commemorate the anzac centenary on saturday , the service records belonging to two of edgerton 's great grand-uncles show they were on the battlefield in gallipoli 100 years ago .