Goofs

The Polaroid camera being used is an SX-70, which does not have a flash built in, nor makes the sound of a flash charging. The location of the flash from the camera on screen is actually a built in light meter on the camera.

When the protagonist received the Polaroid SX-70 as a gift, she says, "It's the camera that Ansel Adams and Walker Evans used." Both Adams and Evans used large format cameras, predominately 8x10" film cameras for their work and their well-known work was done several decades before the SX-70 camera was introduced. Those large cameras are virtually on the opposite end of the camera spectrum and they had no automation and required a deep understanding of the photographic process, film development and printing to use. If either photographer ever used an SX-70, it was in their old age and was just to "play" with it. Also, both photographers were virtually retired by the time the SX-70 camera was introduced. In addition, when receiving the camera, the protagonist said that it was only made for one or two years in the 1970s. Actually, the SX-70 was in production from 1972 to 1981 (10 years).

At roughly 41:45, the protagonist is removing a vent cover on a door and there's a closeup of her removing one of the screws. This must be a reversed print as she's unscrewing it clockwise, which would normally tighten a screw. It could be argued that it's a left-hand thread but there's absolutely no reason for a basic screw on a vent to be a left-hand thread.