Visible crew/equipment: When Joe Gillis returns to the mansion, after Betty Schaefer has just revealed her love towards him, when he enters his room, you can see a hand wearing a watch in the mirror. (01:26:50)
Visible crew/equipment: You can see Dean Stockwell's harness and guide wire when Kim is hauled off the ledge and up the cliffside.
Visible crew/equipment: During the dance scene, in the ladies room the shadow of the boom mic is seen in the mirror's reflection behind Ann. (01:10:00)