Deliberate mistake: When Hulk meets his father at the lab, each one's eyes have a special light on them. This adds for dramatic effect, but it's absurd because there is no direct source of light since each one is in front of the other and their faces are in shade in the rest of the shots.
Hulk (2003)
1 deliberate mistake
Directed by: Ang Lee
Starring: Nick Nolte, Jennifer Connelly, Sam Elliott, Eric Bana, Josh Lucas
Continuity mistake: The hole in the car windshield changes size from when the Hulk throws the dog through it to when it's shown the next morning.
Bruce Banner: You know what scares me the most? When it happens, when it comes over me... and I totally lose control, I like it.
More trivia for Hulk
Question: Does Bruce Banner remember anything he does when he becomes the Hulk?
Answer: There are varying interpretations of Bruce's memory in the comics. The most common one is that Bruce has vague memories of what happens while he is the Hulk (i.e. fear, hunger, images), but because the Hulk's brain is less "evolved" he can't remember specific information, like where he went or what he did. The converse is also true: The Hulk has vague memories of Bruce's life as well...he recognizes people that Bruce knows but doesn't know anything about them.