I was just going to say the same thing. And for the longest time, I thought Katharine Hepburn was British - but now that I know more upper-class Bostonians of the right age, I understand.
They did at least know that Allnut couldn’t be an American - the story definitely loses something if it’s not two people fighting for the Empire together.
Oh, hey, don’t be blaming us for any possible sequel. Even if it did do well in Australia (and I don’t know that it did - I certainly didn’t see it and I sat through Underworld), I doubt very much that movie-makers would seriously plan a sequel based on a market the size of Australia.