People going to see the film at the Broadway Cinema in Letchworth, the location for the outside of The Mermaid, were shown a short clip beforehand featuring Simon Pegg, Edgar Wright and Nick Frost, welcoming them to the cinema and hoping they enjoyed watching it from inside one of the filming locations.
The Sisters of Mercy's "This Corrosion" is used over the end credits. If this track sounds very familiar to you, it might be because other's have described Hans Zimmer's "Las Vegas" music from Rain Man (1988) as being a "dead-on swipe" of this Sister's track.