Continuity mistake: During the street chase in Brazil, the time of day changes from night, to perhaps late afternoon/evening, to night again.
Continuity mistake: When Dr. Ross and Bruce are in the hotel room, Banner empties the purse on the bed and there is some cash inside the wallet. As they are about to leave he picks up the cash, which isn't in the wallet anymore. (01:08:10)
Continuity mistake: In the motel room, Betty gives Bruce a new heart monitor watch, still in its box. In a subsequent shot, the box has disappeared and Bruce is putting the watch on. The cut to Betty and back is too fast for him to have taken the watch out and junked the box. (01:04:10)
Continuity mistake: At the beginning of the movie, when the general wears his dress greens, his epaulet rank has the stripe near his neck. Later,in a shot about halfway through, the stripe is near his shoulder.
Continuity mistake: During the opening credits, the camera approaches Betty's bed, where she lies unconscious. The first shot shows her head straight, but an immediate closer angle shows it tilted to the left.
Continuity mistake: As Emil is in the men's restroom looking at the mirror, some of his hair is hanging over his forehead, but when the shot changes, his hair is suddenly brushed back.
Continuity mistake: You have to be quick to spot this one, but when Bruce is ringing the bell on his bike, you see a woman on her mobile phone for about a second, in the next shot it has disappeared.
Continuity mistake: When Bruce and Betty are hugging on the bridge, they turn back and forth about a quarter of a turn whenever the camera angle changes.
Continuity mistake: When Hulk throws the chunk of sheet metal at the helicopter, it glances off the rotor housing (taking a ragged piece with it.) When the chopper crashes, however, the propeller comes off with a perfectly clean edge, as if the projectile had sheared completely through the base.
Continuity mistake: In the scene where Betty drives up behind Bruce in her car as he begins to cross the bridge, Bruce's left hand is visibly clutching his jacket shut. In the next shot from inside Betty's car, his hand is immediately at his side. (00:42:20)
Continuity mistake: After the first time we see Bruce transform into the Hulk, he has hitched a ride with the elderly man. You will remember he has 3 1/4 length pants on with a few rips. It cuts to a quick clip of him walking up the road but this time he has full length pants on. They switch back to shorter length pants straight after.
Continuity mistake: When Dr. Ross empties her handbag on the bed, there is a Givenchy compact with the Givenchy insignia face up. When the bed is shown again, the compact is face down.
Continuity mistake: At the university while Hulk fights the army the sun changes between shots.
Continuity mistake: When Abomination pins Hulk to the wall, and Hulk starts to push back, at first, when the camera view is level with their heads, Abomination's left hand is grabbing Hulk's right forearm. But when the camera view lowers to their abdominals, Hulk's right hand is grabbing Abomination's left forearm.
Answer: Yes. In the alternate opening, after Bruce turns into the Hulk and causes the ice to collapse, a huge chunk of ice is broken free from the ground. In this ice is a figure dressed in blue holding a round shield with circular red and white stripes. The best way to see this is waiting until the huge ice wall breaks and then slowly advance frame-by-frame and eventually Captain America and his shield will be seen.