Gertie the dinosaur, an animated Diplodocus, was one of the first dinosaurs ever to appear on film. She originally appeared as part of a vaudeville-like act in which a host would "command" Gertie to perform tricks, and she was such a hit that she was featured in a sequel.
Titled "Gertie on Tour", this film was intended to feature Gertie traveling the world. For one reason or another, though, it was never finished and generally forgotten. The age of YouTube has given Gertie some new life, though, and here are a few snippets recovered from the long-lost film: