In the yellow pages, the address of the PI is on Dahl Ave. - a joke by the art department to the director, before they knew the address would be visible on-screen.
Val Kilmer's second movie with his wife-at-the-time Joanne Whalley. They both previously starred in Willow (1988).
Joanne Whalley's new name "Vera Billings" is a combination of the town (Billings) where writer-director 'Dahl, John' is from, and a girl he dated.
Although the film was rated M in Australia. The film was given the 18 rating in the UK and the R18 rating in New Zealand for it's bloody violence.