The Moon director took himself out of the running for the film after meeting with the franchise's new mastermind, Christopher Nolan.
Jones tells CinemaBlend.com, "I think, maybe, I'm not quite ready for that scale of project and that scale of expectation from an audience that is already existing and is waiting to see the next generation of Superman film. It's a hard one.
"Superman was so big that I think I was a little intimidated by it and sort of backed out."
Fussy Jones also backed out of the chance to tackle comic book hero Judge Dredd on the big screen.
He adds, "I'm also a big Judge Dredd fan, which was another one that came my way... Judge Dredd, I really thought about and it ended up not being right for me because I had such strong feelings and opinions on what I wanted that film to be.
"Although I really like what they're going to do with it, it's not the film that I was going to make. So that one wasn't going to work out."
300 and Watchmen director Zack Snyder is now onboard the Superman projects, while Pete Travis is reworking Judge Dredd with actor Karl Urban.