Wow...
I just read this post from another board and whilst I skipped most of it [it's a really lenghty post] and I don't know exactly how trustworthy all the info is, this post was an incredible insight into studio politics and just the general screw-up that has been Superman V.
An interesting read if you have the time on your hands.
The Story Behind Superman VAlso as a side note, that site has a link to a fun review of the Roger Corman version of the Fantastic Four.
Either follow the links in the above link or go straight
HERE for more.
Just thought I'd let you all know!