James Gunn has confirmed Superman's full cast hasn't been revealed yet The co-CEO of DC Studios won't say who else might appear I'm convinced that another superhero will show up, albeit in a cameo role Superman is less than a month away from flying into theaters and,

Opinion is sharply divided as to how high the superhero pic can fly when it hits theaters, with some suggesting a much lower range of $90 million to $120 million.

The writer/director of this summer's "Superman" and the co-head of DC Studios offers a peek behind the curtain.