The copyright on this production is 1985.
This documentary was expanded to 80 minutes and released on DVD in 2023 by Marshall Publishing & Promotions under the new title Lugosi - The Curse of Dracula. Some of the additional footage is newer than the documentary's original production date of 1984, but evidently filmed years or decades prior to 2023. The copyright on the DVD is "1984/2023 Operator 13 Productions / Lugosi Enterprises."