The Fly (1986)

Visible crew/equipment: When Jeff Goldblum is first showing his telepods to Geena Davis, as the door to the first pod opens, you can see a reflection of a stage hand in the lower left corner of the pod door.

Visible crew/equipment: After Seth Brundle has gone through his final stage of metamorphosising into the Brundlefly, he throws Ronnie (Geena Davis) into one telepod and then starts to make his way across the lab towards the other one. Watch as he emerges from behind a wooden pillar, there's one shot where a crew member's arm is seen reaching inside the back of the Brundlefly puppet, to move the creature's head. You'll need to slow-mo to see it but it's there. (As per the rules of this site, visible crew members is an acceptable use of slow motion.)