Seinfeld asserted in an interview with Jimmy Fallon that he did not seek permission from Kellogg for using their product names and characters but he would enjoy being sued.
When the mascots storm the Kellogg's building, Hugh Grant's character is costumed as a parody of Jacob Chansley, the Capitol rioter known as the "QAnon Shaman."
Directorial debut of Jerry Seinfeld.
Bob Cabana (Jerry Seinfeld) is given apparently bad milk to sniff by milkman Mike Diamond (Christian Slater), asks "What's the expiration...?" and as he passes out Diamond says, "July Third." This is based on a joke Seinfeld did in his standup act, in which the cow that gives the milk tells the dairy its expiration date, and Seinfeld had the cow saying exactly that date, "July Third."
The film stars and is directed by Jerry Seinfeld. It derives from one of his standup bits about Pop Tarts, per Seinfeld from the podcast Smartless.