The film contains many references to Romero's films "Night of the Living Dead", "Dawn of the Dead", and "Day of the Dead", with "Dawn" in particular being referenced. A hand-in-mouth theoretical sequel called "From Dusk Till Shaun" was discussed by Wright and Pegg as "pub talk", referencing "From Dusk till Dawn". A poster was made for "From Dusk Till Shaun" to feature in the alternate universe Times Square in the 2018 animated Sony Pictures Marvel Comics movie ""; a co-director of this film, Rodney Rothman, had reached out to Wright to ask for a movie suggestion that he could have theoretically made in the alternate universe.