Continuity mistake: When Gargoyle is standing in the doorway of the hospital room bidding farewell to Banner, they are standing at a straight angle respective to each other. When the shot changes, Banner has moved several feet to the left. (00:20:17)
Continuity mistake: When Abomination attacks Bruce Banner at the infirmary, he shoots him with a laser blast that leaves a hole in his shirt's chest area. In the next scene after Banner has been taken to Gargoyle's lair, his shirt is no longer damaged. (00:12:45 - 00:13:45)
Continuity mistake: When Gargoyle and Abomination are looting the electronics store and Gargoyle notices Bruce Banner walking by, a display stand appears next to Gargoyle in a close-up shot that is not there in wide shots.
Continuity mistake: After Hulk breaks free of the cable Thor wrapped around him, he lands on the street and is hit by a car, which damages its bumper and windshield. When the shot changes the car is suddenly pristine until Thor lands on its hood. (00:06:35)
Continuity mistake: The cable Thor tears off from the suspension bridge to wrap around the Hulk changes from a copper color to silver. (00:06:25)
Continuity mistake: The steel beam that Hulk pries off the top of the bridge and throws at Thor wasn't there when he first landed. (00:06:00)
Factual error: When Hulk lands on top of Mount Rushmore, Teddy Roosevelt's glasses are missing.
Continuity mistake: When Dr. Blake is walking towards the phone, it is resting on its receiver. When the shot changes to him picking the phone up, it is suddenly on a piece of medical equipment.
Continuity mistake: When Betty is walking through the infirmary, she is walking past a bedridden man to his left. After he reaches out and grabs her by the arm, the shot changes and she is suddenly on his right.
Audio problem: When the government employee is saying "You are hereby ordered to accompany me to Detroit," his mouth and jaw are completely motionless.
Continuity mistake: When the government employee hands Betty the federal document, the federal seal disappears. (00:01:58)
Answer: The Hulk is a giant brute who smashes everything in his path when he is angry. In Ang Lee's "Hulk," General Ross, played by Sam Elliot, explains it to his daughter.