Only just realising now that this poster kinda spoils
the climax. Woops.
Edgar Wright is a very odd filmmaker, but I can't help feel a little kinship with him, even (or perhaps because of) when his films seem to make strange tonal shifts and swerve off in strange directions. Take Shaun of the Dead, which was promoted as (and likely sold to its distributors as) a spoof of the typical zombie apocalypse movie. And that's what it is for 70% of its runtime, until towards the end it drops the spoof and simply is a typical zombie apocalypse movie, albeit a very good one. Ditto for Hot Fuzz and buddy cop actioners. There's a sense of Wright wanting to have his cake and eat it with these films, and honestly, if I was in his position, I'd wanna do the same thing. Most 'comedy' directors settle for just being comedy directors, but Wright has aspirations and he's somehow managed to successfully duct-tape them to what outwardly look to be comedies.
That pattern continues with The World's End, which is a comedy about five friends getting really drunk, and also about robots which aren't robots. Okay, this one is going to take a little longer to explain, so grab a pack of Jaffa Cakes* and settle in.
* - WOOT SPACED REFERENCE