A British TV station, when broadcasting this movie, elected to replace the word "cunt" with the word "cock," but had left all instances where the actors had used the word "fuck" in.
The word "fuck" is used 77 times in the movie.
As Shaun is leaving the convenience store, a newscast in Hindi can be heard on the TV. When translated, the reporter says "People are waking up from their graves".
The famous "Wilhelm Scream" sound effect is used just as the military arrives.
Impressed with their performances in Shaun of the Dead, George Romero asked Simon Pegg and Nick Frost to play zombies in his next movie, "Land of the Dead".
Shaun's out-sick coworker, Ash, is likely a reference to the Ash character from the Evil Dead series.
Scenes for the Winchester pub were shot at the Duke of Albany pub which has been converted into housing flats as of 2008.
The restaurant Fulci's is named after the Italian horror director Lucio Fulci.
The game Shaun and Ed play is Timesplitters 2 on the PS2. In turn, the game's sequel, Timesplitters Future Perfect, referenced Shaun of the Dead by having a zombie ask "Have I got red on me?".