Don Bluth Entertainment (formerly Sullivan Bluth Studios) was an Irish-American animation studio established in 1979 by animator Don Bluth. Bluth and several colleagues, all of whom were former Disney animators, left Disney on September 13, 1979, to form Don Bluth Productions, later known as the Bluth Group. This studio produced the short film Banjo the Woodpile Cat, the feature film The Secret of NIMH, a brief animation sequence in the musical Xanadu, and the video games Dragon's Lair and Space Ace. Bluth then co-founded Sullivan Bluth Studios with American businessman Gary Goldman, John Pomeroy and Morris Sullivan in 1985.