And yet, one of the more ironic things about SR not getting a sequel is that Warner Bros. did
greenlight a sequel in October 2006:
Variety has confirmed that Bryan Singer has signed a deal with WarnerBros. Pictures to direct and produce a sequel to Superman Returns, with Legendary Pictures expected to co-finance.
The film is tentatively intended for release in summer 2009, although the studio stressed that there's not even a script or budget yet.
The sequel is apparently at the very beginning of the development process and, as with any other project, there are any number of factors that must be addressed before it is greenlit.
While Superman Returns wasn't the performer the studio had hoped for, it has earned more than $390 million worldwide and WB and Legendary say they will still turn a profit from the film.
The two companies are sure to insist that the sequel's production budget comes in under $200 million, adds the trade.
In terms of casting, Warner Bros. has an option on Superman Returns star Brandon Routh.
(The article itself is in the Variety archives, and you need a subscription to view it.)