At the beginning of Shaun of the Dead when Shaun and Liz are discussing new places to eat Shaun suggests the “place that does all the fish”. A throwaway line but in a scene later in the film when Shaun leafs through the phone book, you can see that is actually the tagline of the restaurant
https://www.reddit.com/r/MovieDetails/comments/6ybm5q/at_the_beginning_of_shaun_of_the_dead_when_shaun/dmm3seo