* The category has changed: The Best Screenplay Oscar was originally a single category (1928-1940), then split into Best Writing, Original Screenplay and Best Writing, Adapted Screenplay (1941-present).
* "Animated" is not a specific category: The Oscars don't have a separate category for animated films, so any animated film can be nominated for any category, including Best Screenplay.
* There's no central database: There's no official database tracking every animated film nominated for Best Screenplay over the years.
However, here's what we can say:
* Several animated films have been nominated for Best Screenplay: Notable examples include *Toy Story* (1995), *Finding Nemo* (2003), *Up* (2009), *Inside Out* (2015), and *Soul* (2020).
* The number is increasing: As animation technology and storytelling have improved, animated films are increasingly recognized for their screenplays.
To get a more precise answer, you could try searching for:
* Oscar nomination lists: Check past Oscar nominations for Best Screenplay and identify animated films.
* Film databases: Sites like IMDb or the Academy Awards website may provide some information about nominated animated films.
Keep in mind that finding a specific number for all animated films nominated for Best Screenplay throughout Oscar history might require significant research and cross-referencing of various sources.