If you look at the Earth without architecture, it's sometimes a little bit unpleasant. So there is this basic human need to do shelter in the broadest sense of the word, whether it's a movie theater or a simple log cabin in the mountains. This is the core of architecture: To provide a space for human beings.
This disciplinary overlap between architecture and film is fundamental in the use of similar software modeling and techniques and has brought the two closer through the idea of storytelling, a notion inherent to both disciplines. In architectural drawings and schematics.