Some of the street scenes in the movie were filmed on the intersection of Swanston Street and Flinders Street, where Federation Square, Flinders Street Station and St. Paul's Catherdral are located.
In the following photograph, Eddie is running into the Flinders Street Station. You can see Federation Square and Swanston Street behind him. Federation Square was also used in the Murray Whelan movies.
Here is a photograph of Flinders Street Station.
Behind Eddie in this shot are the steps leading up to the station. This angle is from St. Paul's Cathedral, which is diagonally across from the station.
The scene where Eddie and Nick dig through the trash took place outside St. Paul's Cathedral.
St. Paul's Cathedral.