Visible crew/equipment: When C-3PO is on the conveyor belt, if you look in the reflection in his head you can see the camera crew. (01:26:40)
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: The vindictive alligator demolishes the bad guy's car; in the shot where the tyre flies off, you can spot the jack under the car. (01:17:05)
Visible crew/equipment: When Flash is attacked by the alien he falls on a noticeable brown safety mat.
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)