: screenwriter George Gallo based their bickering on his own parents, describing it as a "marriage" of sorts. Through constant arguing, they break down each other’s walls. The Duke acts as an "armchair therapist," forcing Jack to confront his past and his "ulcer-inducing" rage.
: Because The Duke refuses to fly, the two are trapped together on a cross-country journey via trains, buses, and stolen cars. Midnight Sex Run
The film’s most grounded emotional scene involves Jack’s visit to his ex-wife, Gail, in Chicago. This subplot highlights Jack's isolation and the romantic life he lost. : screenwriter George Gallo based their bickering on