20 categories for 20 short films. The rules are that only movies you are seeing for the first time count, and the run time must be 40 minutes or less. A film may go into an already filled category if it cannot fit into an empty one.
Here are the categories
A short film on YouTube
A short film not on YouTube
A horror short film
A comedy short film
A science fiction short film
A female directed short film
A female led short film
A short film at least 20 years old
A foreign language short film
A short film under 5 minutes in length
A short film under 10 minutes in length
A short film longer than 30 minutes in length
A directorial debut
A female directorial debut
A short film released this year
A short film released in 2014
A short film from the 1970s
A short film with a single word title
A short film with "The" at the beginning of the title
A short film with a death