When the Hulk stands outside the bank doors, one of the customers, who is sitting at a table shows a complete lack of interest or surprise as he looks up and looks back down.
During the second Hulk Out, when the Hulk seats Paul Corton onto the bench, the Hulk's green make up can be seen on Paul's jean's leg and shirt.
David is supposed to be paralyzed from the chest down when he triumphantly climbs to the top of the rope with the strength of his arms. However, even though the camera is shooting him from the waist up, you can clearly see him lifting one of his knees into frame just as he finishes his climb.
When Paul knocks the pictures from the wall it clearly shows him breaking the one where he is wearing the #51 top. Afterwards when he places the briefcase on his lap you can see the same picture is still up on the wall.
The car David is driving is different to the one he started with. He originally started driving one with square mirrors but after he hulks out and kicks the door out it has round mirrors.
When the Hulk throws the wheelchair up the stairs the wheels are facing down but when they reach the top the wheels are up side down.
When David turns Jack's car on you can see the reverse lights turn on momentarily. The lights would not turn on until the reverse gear was used.
When David hulks out in the car he was wearing a brown belt which you could see as he got into the car but the belt is nowhere to be seen after he hulks out.
Shadow of boom mic behind the doctor as he talks to Banner in the hospital room.