Visible crew/equipment: A boom microphone is reflected in Luke's goggles when he says "Hey, what's the matter? You smell something?"
Visible crew/equipment: Ursa throws the sewer lid at Superman sending him flying backwards into the car windshield. Watch the sewer lid carefully when Superman actually hits the windshield. You can see that the sewer lid was actually attached to a belt around his waist so that it would stay in place for the shots where he is flying backward through the air. (01:39:50)
Visible crew/equipment: Dave tells Evelyn to 'freeze' while he's rationalizing future marriage plans, and walks around her from the right. As he reaches her left side, the boom and a gaffer (camera guy) are visible at far left for a split second. (01:06:10)
Visible crew/equipment: In the opening shot of the movie, several people (presumably the film crew) are reflected in the eye of the titular reptile. (00:00:15)
Visible crew/equipment: When Flash is attacked by the alien he falls on a noticeable brown safety mat.