The Mexican flower woman at the airport who cries "Flores! Flores para los muertos!" is a tribute to A Streetcar Named Desire (1951) in which a Mexican flower woman cries the same phrase outside Stanley Kowalski's apartment. It also could be a reference to Who's Afraid of Virginia Woolf? (1966), another film about a bickering couple.
When original director Jonathan Demme became unavailable, writer Howard Franklin and producer Bill Murray couldn't agree on who would be a good director for the project. So they decided to do the job themselves.
Based on the novel by Jay Cronley which was also filmed 4 years earlier as "Hold-Up" with Jean-Paul Belmondo and Kim Cattrall.