Title of this film is shown on a theater marquee ("House Of Horrors").
The title of Dr. Terror's Gallery of Horrors is based on Dr. Terror's House of Horrors, although the two films have no actual connection.
A poster is visible in a hallway.
Christopher Lee mentions "Dr. Terror's House of Pancakes"
A plant happens to grow extremely fast and becomes very large and then threatens the lives of other characters.
The film's theatrical poster is shown.
Documentary about the feature film
Clips are shown