Lost Media that you know you will never find

With Dead End, there's the fact that it's tied to Emerson Bixby, who has had actual ties to movies and TV and has an IMDB page. Bixby himself also sort of confirmed its existence as a failed "proof of concept" film he did on a very low budget that didn't get picked up for distribution, so it's not entirely out of the question one of the tapes he made got leaked and copied.

I think a lot of the more out there details in the movie mentioned on IMDB can be chalked up to either exaggeration or people misremembering things and in turn leading to exaggeration. 

It's sad that Dead End faces no skepticism yet everyone angrily shrieks at the mere mention of the possibility that Go For A Punch could be real. But that can be chalked up to a very specific Reddit shitposter who was later outed as a liar and a troll, but by the time he got debunked, it was too late.