Visible crew/equipment: When Bob Hope and Lynne Overman are running through the artillery range the second time they fall you can see lights reflected off Bob's helmet as he is getting up.
Visible crew/equipment: After the moving candle/ghost incident involving Ferdie and Camille, and before Moose Matson's money is discovered, Chuck and the doctor come running in, and they all start yelling and talking, there is a person (probably a crew member) briefly visible in the round window in the door in the background.