The Adventures of Mark Twain (released in the United Kingdom as Comet Quest) is a 1985 American stop motion claymation fantasy film directed by Will Vinton and starring James Whitmore. It received a limited theatrical release in May 1985. It was released on DVD in January 2006, and again as a collector's edition in 2012 on DVD and Blu-ray.
The film features a series of vignettes extracted from several of Mark Twain's works, built around a plot that features Twain's attempts to keep his "appointment" with Halley's Comet. Twain and three children, Tom Sawyer, Huck Finn and Becky Thatcher, travel on an airship between various adventures.