All the scenes involving the Union representatives were filmed in the same room, at the same desk, and with the same actor ('Will Ryan') playing all the representatives.
The film features an independent film-maker (Mike Jittlov) playing an independent film-maker, a producer (Richard Kaye) playing a producer, and an actress (Paige Moore) playing an actress.
The original 3 minute short of "Wizard", along with two other segments by Mike Jittlov, were shown on a segment titled "Major Effects" on "Walt Disney's Wonderful World of Color" which showcased special effects.