Visible crew/equipment: Just as 51's guys are removing the novelist from the car that's filled with carbon monoxide fumes, a crew member's reflection, as well as the screen from production equipment, can be seen on the car's driver side window.
Visible crew/equipment: When Johnny and Roy aid the woman who is stuck in the small opening of the dog door, the bulging outlines of the mic transmitter and wire are visible on the back left side of Johnny's shirt.
Visible crew/equipment: When Johnny asks Dixie for advise on how to talk to fifth graders, Dixie walks out from behind the desk at the nurses' station, and as they walk up the hallway the actor's tape mark is visible on the floor, where she had been standing and where Morton is about to stand.
Visible crew/equipment: When Brackett, Early, and Morton enter treatment 1 to examine the hallucinating veteran, inside there's a young doctor standing to the left of the door. After Brackett tells Morton he wants an EEG, skull x-rays, and brain scan, when Morton heads to the phone to order the neurological workup, we can see the actor's white tape mark under the gurney, where the young doctor had been standing.
Visible crew/equipment: After Station 51 rescues the novelist from his attempted suicide, when John accompanies the stretcher into the ER, the outlines of the mic transmitter and wire are visible on the back of his shirt.
Visible crew/equipment: When John and Roy tackle the hallucinating veteran, the outlines of the mic transmitter and wire are visible on the back of Johnny's shirt. As an aside, this scene was shot right outside Universal Studios, note the Black Tower/MCA Tower (which houses Universal's execs) when John tells the veteran that it's not a trick and to calm down.
Visible crew/equipment: After Station 51 is dispatched to the plane in trouble, just as Engine 51 makes the right turn into the lot, before they park beside the squad, a crew member's/cameraman's sleeve gets into the shot, at the left of the screen.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
stiiggy