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: That is an altered version of Eric Bana's voice.