Favorite completely lost but existence confirmed cases

Full footage of the various FIFA U-20/17 World Cup tournaments, both men's and women's.

I'm convinced that some games of the earliest editions in the 70s are probably lost forever. However, I hold on to hope that footage from about 1980 onward is mostly intact. The reason why I'm so obsessed with this tournament is partially nostalgia - I'm a 2000s kid that grew up watching these tournaments broadcast on Spanish-language TV. However I'd love to see footage of some of soccer's future stars in their early days.

The women's tournaments I have a lot more faith existing. The U-20 Women's edition only started in 2002 and U-17 in 2008, so FIFA must have full footage of every game in that era. Recently in May 2024 FIFA uploaded the final of every U-17 FIFA Women's World Cup which for me personally was huge as I had been looking for footage of some of these matches for years. However, the full tournaments are yet to be uploaded. I'm sure VHS recordings exist, they're super hard to come by though. U-20/U-17 men's games are already harder to come by (an incomplete archive is available on Footballia) and these aren't in great quality. The women's U-20/U-17 games are very rare, especially older matches.

I do have faith that FIFA is eventually gonna upload every game from these tournaments in full quality and full length. I feel given their historic importance they should be. The good news is that contacting FIFA on this matter is very straight forward and can be done on their contact page. I've already sent them e-mails. The fact that they've uploaded some stuff means I think they are seeing the emails and getting around to it. It's a matter of patience.

The original Michael Jackson demos for Charlie and The Chocolate Factory.
I do not think that Warner Bros would ever release it in their current state, and I don't think that any of his relatives would have it too.