Also, if you watch the film once, there are lots of things that you won't get because there are punch lines in the first act, the setup to which isn't until the second act. ↗
Both me and Edgar are firm believers in never underestimating or talking down to an audience, and giving an audience something to do, to give them something which is entirely up to them to enter into the film and find these hidden things and whatever. ↗
I mean, yeah, I'm sure that Python and the other things have paved the way for a greater understanding of the British sense of humor, but I don't think it's all that different than the American sense of humor. ↗
I think at its best the American sense of humor is the same as the British sense of humor at its best, which is to be wry and ironic and self deprecating. ↗
That's what we wanted to get across in that moment, particularly when Shaun goes to the shop when he's all hung over. He doesn't notice any of the zombies around him just because he never had before, so why should he at that point? ↗