In recent news, Joss Whedon is not only having Mark Ruffalo play Bruce Banner in the upcoming "Avengers" film, he's also having him play the Hulk?!? Don't worry, the hulk will still a 9 foot CGI behemoth, but his facial features will resemble a lot of Mark's features...only bigger. Not only that, but Mark will be in charge of motion capturing the Hulk's movements for the CGI animators. Therefore, you can expect a different looking hulk in the upcoming Avengers film.
yep, that's about the size of it alright. Although, I'll never understand why they can't just go with the same look that was used in the last film, as it's not like the Hulk in that movie looked anything like Norton.