The title of best Australian film is hotly contested, but if you’re looking for the most Australian film, it’s hard to go past The Castle. The film’s 1997 release saw it go straight to the pool room of Australian popular culture, and in the two decades since, it’s only reinforced its prominence as a source of colloquial comedy. Choice quotes from its screenplay – “tell him he’s dreaming,” “so much serenity,” “it’s the vibe of the thing” and, of course, “suffer in your jocks!” – have firmly established themselves as part of the Australian vernacular.