Dirk Eitzen also examined the film in depth as an example of how comedy is made in film, particularly how interpretive humour and satire are used. For example, when Shaun slips and falls in the shop in the opening sequence, per Eitzen's explanation, it is funny on several levels. Falling is funny; not noticing the zombie apocalypse is funny; the social satire that contrasts Shaun's mindless behaviour with the mindless zombies is funny; and the self-reference to where Shaun had slipped on a curb earlier in the sequence is funny, too. Media scholar Lindsey Decker wrote on how the film created comedy through transnational generic hybridisation, taking cues from American zombie movies as well as "British comedic practices from WWII-era Ealing comedies, television two-man comedy teams and the Monty Python sketch troupe". In this use of British comedy within an American genre, it also serves as commentary on British-American relations in the film industry.