The same wall barometer and elephant statuette seen in Dr. Markov's office are also visible in the office of Dr. Adams.
In the scene where Patricia is reading the note on the flowers her nails go from being painted a dark color to not being painted at all when the camera zooms into the note she is holding.
The morning after the gorilla is returned to its cage, the shadow of the boom mic can be seen on the cloth covering the cage.
The level of the boxes at the concerts, which begin and end the film, are not consistent. They are either at ground level or well above the concert platform.