I though it was fake.

I happened on this film by chance and was convinced that it was fictional. They don't usually show documentaries on the channel and in the timeslot that it was on, and while I read a short plot outline in the TV times, it didn't specifically state that it was factual, so I pretty much approached it assuming it was fictional.

Throughout the film I thought that they did the whole faux documentary thing pretty well. Usually, these things turn ridiculous at some point, or one or two of the supposed real-life people were not good enough actors. But this film seemed to keep it all pretty realistic. And as the story unravelled, I knew that I at least very much wanted it to be true.

Thinking that it was still possible it was factual, the closing credits made it even more likely, and a few minutes at Google and the Internet Archive after the film ended confirmed it, which was pretty mind-blowing.

Now I'd like to recommend this film to some friends on occasion, and I'm thinking: I'd like to get them to see it the same way I did, not knowing whether it was fictional or factual. It's a pretty unique experience watching something like this and, with every new piece of information that is presented, wondering whether the entire thing is fictional, based on some actual story, or it could indeed be a real documentary.

But how can I achieve that? When I recommend it they'll know something's up. And even if I can prevent them from looking the title up online, what do I tell them when they ask me why I want them to watch it? :)