Paul Goddard's character ("The Son") tells Mark Lee ("The Youth") that he would love to see the site of the Battle of Gallipoli someday. Mark Lee starred in the film of Gallipoli (1981) with Mel Gibson.
Allegedly loosely based on long time government minister and early 70s Australian Prime Minister Sir William "Billy" McMahon's backstory. McMahon also married late in life (age 57) to a much younger wife, and had a very handsome son, Julian McMahon.