In truth, Cage's involvement is only the tip of a very large iceberg. As we mentioned, Kevin Smith was brought in to write the screenplay, but he had to work with the ridiculous conditions imposed by producer Jon Peters: Superman could not be seen flying, couldn't wear the classic costume (Peters insisted on a black suit) and somehow, someway, had to fight a giant spider at the end. What was the reasoning behind changing Superman's costume, you ask? Peters thought the classic blue-and-red outfit looked "too faggy."
This season, the heterosexual male is wearing tight, black leather.
There's more. Peters and Warner Bros. wanted the villain Brainiac to punch polar bears at Superman's Fortress of Solitude, presumably to work in a Coke sponsorship (apparently under the impression that Coca-Cola fucking hates those bears). Due to the success of the recent release of the original Star Wars Trilogy, Peters wanted Braniac to have a robot sidekick -- "a gay R2-D2 with attitude" -- and Lex Luthor to have a space dog, because "Chewie's [Chewbacca] cuddly, man. You could make a toy out of him, so you've got to give me a dog."
The Art Designer was appalled when Peters "would bring kids in, who would rate the drawings on the wall as if they were evaluating the toy possibilities." Director Tim Burton hired Wesley Strick to completely rewrite Smith's script, which at this point was a disfigured mess of gimmicks and toy commercials. Strick incorporated another one of Peters' suggestions: Brainiac and Lex Luthor would amalgamate into a mega-villain called "Lexiac" (which sounds like the name of a laxative).
An evil Laxative.
Warner Bros. would spend $30 million and go through several more scripts before Burton and Cage got fed up with all the stupidity and quit the project. Burton still describes Superman Lives as "one of the worst experiences in his life," while Kevin Smith made a popular comedy routine out of the whole thing.