As Martin and Lucia sit in their car, transported across the Balboa channel on the ferry, the image rear-projected behind Martin shows the famous Balboa Pavilion receding to his right. That image is flipped for the next shot angled toward Lucia, and the Balboa Pavilion is briefly glimpsed receding on the left.
During Lucia's motorboat ride to dump Ted Darby's dead body, just before she passes under a road bridge, the frothy bubbling wake in front of Lucia's speedboat can clearly be seen, which could only be coming from the vessel carrying the film crew and camera.
Director Max Ophüls name appears as "Max Opuls" in the credits.