Krazy Kat – Bugologist (1916).
Among the films at the Library of Congress YouTube channel are a number of shorts from the early days of animation including several of the first Krazy Kat films. George Herriman apparently had nothing to do with these, they were Hearst corporation spin-offs, which perhaps explains their lack of Herriman’s eccentricities. They’re necessarily crude, of course; cartoon animation had barely begun in 1916 and Walt Disney was yet to make a film. It’s curious watching a cartoon which transcribes the comic strip conventions so literally, with speech balloons growing from the characters mouths. Also at the LoC channel is one of the later Gertie the Dinosaur films and the very strange The Centaurs, both by Winsor McCay and son.