U.S. News & World Report has an interesting new article on Richard Branson and it includes a bit on his cameo in Superman Returns:
When Superman returns to theaters next year, the superhero won’t be saving only Lois Lane and Jimmy Olsen. The Man of Steel will also reportedly be lending a helping hand to British billionaire Richard Branson, head of the Virgin Group travel, media, and communications conglomerate. In one sequence, apparently, archvillain Lex Luthor attempts to shoot down Branson in his space plane, only to be thwarted at the last moment by the big, blue boy scout.
You can read the full article at the link above.