 After gaining experience as a writer and editor of film trailers, Trenchard-Smith made documentary films for Australian television, many of which focused on stunt performers and martial artists, including his frequent collaborator Grant Page.He made his directorial debut with "The Man From Hong Kong" (1975), the first film to be produced as an international co-production between Australia and Hong Kong.Many of Trenchard-Smith's preceding films over the next decade became notable examples of the Ozploitation cycle, including "Deathcheaters" (1976), "Stunt Rock" (1978), "Turkey Shoot" (1982), "BMX Bandits" (1983), "Frog Dreaming" (1986) and "Dead End Drive-In" (1986).