When O'Neal is checking the taxi's frequency, the sheet he looks at has Scott Collins and Len Wiseman on it. They were prop assistants on this film as well as Stargate and Independence Day, all made by Roland Emmerich.

The cop that we see when Godzilla interrupts the mayor's speech also played a cop in Independence Day, the one whose car got wrecked when the alien arrived.

The mayor is named Ebert and his assistant is named Gene. These two were parodies of two well-known movie critics: the late Gene Siskel (who died in 1999 from complication from brain surgery) and Roger Ebert. They gave bad reviews for "Stargate" (1994) and "Independence Day" (1996) which were also made by Roland Emmerich and Dean Devlin, so this is also their way of getting back at them. The actors who play them also look similar to Siskel and Ebert.

This movie features three actors who do voices on The Simpsons: Nancy Cartwright has a brief cameo as a receptionist, Harry Shearer plays Charles Caiman and Hank Azaria plays Animal.