Back in 1994, Roger Corman, aka. the King of Low-budget Films, along with Bernd Eichinger, produced a low-budget film version of the Marvel Comics' Fantastic Four--this was before the big-budget one with Jessica Alba.
Made with a little over $1 million (compared to the eventual $90 budget for the 2005 version), it has been commonly understood that this film was never intended to be released (although the crew were not aware of it). It has been said that it was made simply due to the fact that the studio had to begin production by a certain date if they wanted to retain the rights to it.
Avi Arad, who was a Marvel executive, "didn't like the idea that a small movie was coming out and maybe ruining the franchise," so he bought up the film and reportedly ordered the prints to be destroyed. (source: Los Angeles Magazine)
Twenty years since the film, this documentary should shed new light on that ill-fated production, with never-before-seen footage and interviews with the cast and crew members.
Starring Rebecca Staab, Roger Corman, Jay Underwood, Alex Hyde-White, Michael Bailey Smith, Carl Ciarfalio, Chris Gore, Jonathan Fernandez, and directed by Marty Langford, Doomed: The Untold Story of Roger Corman's Fantastic Four comes out in theaters sometime this year.
More information about the film can be found at http://doomedthemovie.com/.