Continuity mistake: When Hooper gets his gear from below, after the explosion in the engine room, he runs to the deck passing Quint using the fire extinguisher. The camera pans from Brody, who stands on the bridge deck, to Hooper right below him. So where exactly is the tall iron ladder that leads up to the bridge deck in this shot? It should be behind Hooper, in front of the window, but it's gone. Don't fret, it's back in the following shots. (01:49:05)
Visible crew/equipment: While Moretti is in the barber shop on the phone with Sonny, the camera tracks closer to Moretti, Sheldon, and Carmine, and as Moretti says, "Come on, let's be reasonable...just give me your name," we can see their three T-marks (dark chalk) on the floor at their feet. (00:28:40)