It's possible that:
* The title is incorrect: Maybe there's a slight variation in the title or year. Could you double-check the information you have?
* It's a documentary or special: It might be a documentary or special that aired on a specific channel or platform. Do you remember where you saw it mentioned?
* It's a different format: Perhaps it's a theatrical release, a stage production, or something else.
To help you find the information, please provide more context:
* Where did you hear about this? Was it mentioned in a book, website, or a conversation?
* What else do you know about it? Any details about the plot, actors, or directors could help narrow down the search.
With more information, I can try to find the release date for you.