London: Australia's High Commissioner to Britain, Alexander Downer, has appeared in a self-narrated and often wooden short documentary on the BBC to urge Britain to "get on" with leaving the European Union. The four-minute film features Mr Downer strolling through Australia House and is set to an acoustic version of Waltzing Matilda and finishes with Mr Downer being chauffeured through central London in a Jaguar car with the numberplate "AUS1."