The name "Vacancy" for the production company was formed from the first letters in the names of the five producers.
An ice cream man happened to drive by, so he was asked if he wanted to be in the film. They didn't get his name, so he was credited "The Ice Cream Man as Himself."
The name of the film's production company, Vacancy, came from the first letters of the five original group members involved: Vanessa, Alyssa, Clint, Anne, and Nathan.