No purple pants on the Hulk? That makes ArtTeacher a sad panda.
Listen, I would trade pants color for a good story/direction/action/financial success in a heartbeat...but COME ON!!!!!!! Superman didn't wear yellow boots in the movie!!! DANG IT!!!!!!!!!
All in all, we've heard WAAAAAAAAAAAAAAY more positive about this movie than negative (actually, this may be the first negative for me...but, I also avoid spoilers), so I can't complain...TOO much.
The fans' clamoring was unofficially credited for the Hulk wearing purple pants in Ang Lee's Hulk (actually, they were also credited for him wearing pants at all), so, let's do some clamoring! Remember the FIRST Hulk movie action figure? He had blue pants. After that, they all had purple.