Donald Draper wrote:
The details of a superhero origin can be condensed to basic details. Like this http://www.youtube.com/watch?v=Q2l4bz1FT8U
"...and who disguised as Clark Kent..."
With further info given if it suits the actual story.
Alex Ross did two page origin stories of the JLA which are similarly effective.
I'll pay extra if they use that theme music in the next Supe's movie.