Interspersed throughout the film are short indoor scenes with recorded sound.
It would be needed as well for any indoor scene with more than a few characters.
The interior, however, looked very little like the real "Tom's", as indoor scenes were filmed on a set in California.
The indoor scenes were shot at the Mosfilm studio.
These transitions include changes in points of view and changes from outdoor to indoor scenes.
Portals are best suited for indoor scenes such as mazes.
Most often the static objects would be buildings, where the next indoor scene would take place.
Two of them had been taken outdoors in daylight; the third was an indoor scene.
Rectangle sections were even used many times for indoor scenes.
The period atmosphere of the film demanded that several indoor scenes be filmed by candlelight.