Visible crew/equipment: In the scene at the motel where Matthew says to his mom (Erin Brockovich) "I'll bring you back some breakfast", look at the TV next to the door. You can see one of the film crew holding the boom microphone. (01:50:28)
Visible crew/equipment: During the scene where Chopper shoots Sammy the Turk in the eye with the shotgun in the car park behind Bojangles, the pregnant woman runs back to the car after witnessing the shooting, you can see the boom mike in the bottom right of the car's windscreen.