The document outlines several conventions of short films, including: 1) Most short films focus on 3 main characters or less to avoid lengthy backstory development and keep characters relatable. 2) Short films commonly follow the Todorov structure of equilibrium, disruption, attempts to restore balance, and resolution or new equilibrium. 3) Stories generally depict an everyday situation with a twist to intrigue viewers while maintaining relatability. 4) Nearly all short films contain a plot twist to avoid being boring given their brief length.