Basically the story is about 5 old dudes relieving their younger days by visiting and drinking at all pubs at their hometown in only a single day, the movie starts slow and is a bit boring in the beginning, I won't spoil it but the real twist start after they finish the 3rd pub. Also, just a tip, there is a flashback scene at the very start of the movie, it kinda lampshade lot of things that's gonna happen later. I love it when I notice little details like that.

Oh, and I can't seem to find the Cornetto on The World's End. XD

In my opinion when compared to the other two, its on par with Shaun of The Dead, but Hot Fuzz still top it off. Well, I love buddy cop movies in general, even though the genre is kinda cliche.

EDIT: Simon Pegg and Nick Frost also stared in Paul, its a good one too. Check it out if you're interested.