A portion of the score actually came from William Castle's House on Haunted Hill (1959) which Allied Artists had distributed the previous year.
Harry Fleer is dubbed by Paul Frees.
On the German poster for this movie, actresses Susan Gordon and Juli Reding's names are mixed up and printed as Juli Gordon and Susan Reding. Also, director Bert I. Gordon's name is printed as Bert J. Gordon.
Included on Something Weird Video's Monsters Crash the Pajama Party (1965) Spook Show Spectacular Special Edition DVD.
Susan Gordon, daughter of director Bert I. Gordon, was only ten years old when she played the role of Sandy.