At about 49 mins, Sam Cooper's prescription bottle gives his address as 1112 Ocean Avenue, Amityville. This is a fictitious address, but omitting the first digit gives 112 Ocean Avenue, the former address of High Hopes, the house where the DeFeo murders happened in 1974 and where the alleged Amityville Horror events took place.
The real-life Amityville Police Department building is used in exterior shots, as are other real Amityville buildings.
In one shot you can see the inside of the jail cell and it is obviously made from 2 x 4's that are painted gray.
Aleksandra Zorich Hunt and Thomas J. Churchill Has been living together and dating after working together in this film.