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.
Trivia: Stan Lee, who co-created the Hulk, and Lou Ferrigno, who played him in the 70's TV show, have cameos as a pair of security guards in the beginning of the film. Ferrigno later made another cameo as a security guard in the 2008 reboot.
Continuity mistake: When the Hulk breaks out of the government lab, he pushes up a round staircase and a soldier jumps behind it. He is then seen right in front of it when the camera angle changes. (01:34:50)
Answer: In the first comic, the first time Bruce Banner changed, it was inside a military research facility, and one of the soldiers uttered the phrase, as in "What is that... Hulk thing?"
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