Visible crew/equipment: When Dickie and Ripley are scootering down a little Italian hillside, you can see the shadow of the whole film crew against the hill.
Visible crew/equipment: When Dickie, Tom and Marge are coming out of the Venice Railway Station via revolving glass doors, the cameraman is visible in its reflection on their left when it closes.
Answer: He slips back into the original lie he was telling Meredith, so he can be with her. Peter would know he was lying, so Tom must kill him.