I haven't seen "The Incredible Hulk," since it doesn't open here until a 4 p.m. showing today, so I don't know if the Hulk is shown consistantly as being seven foot tall (his canonic height in the comics) or not. An Lee obviously showed the Hulk becoming very large, rediculously so, deliberately, which was just poor judgement on his part, but Lee is a Hong Kong director originally so he's used to the convention of growing hyperbole, where American audiences aren't.
Sci-Fi channel has been showing the Hulk television series again, and I'm impressed by who some of the guest stars were but I'm not terribly impressed by the series, despite it not being quite as poor as I remembered inaccurately. I first saw the Hulk in 'Incredible Hulk' #4, back in the early sixties, and I tend to think of the Hulk comic book series as being the canonic source, but anytime a comic book property starts crossing over into other mediums there are always changes for one reason or another.
The film was "redone," as someone else mentioned, so the Hulk can be integrated into the Marvel movie universe (Marvel now produced the movies featuring their characters ('Iron Man' was their first production, and "The Incredible Hulk' is their second), rather than liscensing them to other producers, as they did in the past. Chances are the Hulk will be featured in the Avengers movie, but that hasn't been firmly established yet.