Early in his career, Australian director Bruce Beresford helmed Don's Party, which closely mirrors Shampoo in its basic premise and its edgy correlations between sex and politics. One pivotal election night, Don, played by John Hargreaves, throws a party for a group of friends, ostensibly so that everyone can watch the ballots roll in on television. But when booze is consumed in quantity, inhibitions are kicked downstairs. Particularly boorish under the influence of alcohol are Don's male friends, who indulge in a barrage of insulting verbal attacks on each other when they aren't trying to get each other's wives into bed. Unapologetically adult in its content and themes, Don's Party was adapted from a play by David Williamson; it marks one of the earliest classics of Australian New Wave cinema.