Edgar Wright's "Three Flavours Cornetto" trilogy is not your standard movie trilogy. The three films aren't sequels to each other — they don't share characters. But they do share cast members and similar themes, particularly themes of relationships and the dangers of being trapped in perpetual adolescence. They also share ice cream. Specifically Cornetto brand ice cream, which pops up in some form in all three films. Cornetto was mentioned in the first film, "Shaun of the Dead," as a throwaway joke — a cure for a hangover. However, when the joke resulted in Wright and co-writer/star Simon Pegg landing free Cornetto ice cream cones at the "Shaun of the Dead" wrap-party, they decided to keep the gag going. It took off, and resulted in Wright nicknaming the three films the "Three Flavours Cornetto" trilogy as a parody of Krzysztof Kieślowski's "Three Colours" trilogy.

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