I don’t know why but Sony have already given away the nature of Stan Lee’s cameo in The Amazing Spider-Man 2 and, beyond even this, showed off a surprise guest appearance of… well, I can’t even talk around it without giving too much away.
This featurette talks about the film’s green credentials and, just after one minute in, shows of Stan the Man.
More spoilery is the… rather American Werewolf-y cameo at 45 seconds or so in this featurette. There’s a lot of other, less sensitive material, though, including some pretty encouraging stuff.
It does look like fun. I hope it is.