When the man from the ridge top is looking at the ground below through the binoculars, the POV is at approximately ground level, whereas his actual POV through the binoculars should be at an elevated level from the ridge.
When Mr. La Fronte finds Alex and The Hulk starring at each other he shouts out Alex's name the order's Alex to shoot Hulk using the bazooka he is holding, but his lips where not moving as he was speaking.
At the end Dr. Jane Cabot asks David if he knows anything about the creature. Although she was presumably unconscious when David transformed during the lab's fire, everyone else trapped in the room saw it happen, so it should be common knowledge that David is the Hulk, and therefore Cabot should also know it.
At one point Dr. Jane Cabot breathes acidic vapors that are supposed to be harmful, but she shows no signs of injury afterwards.