Answer
All Dogs Go to Heaven is not a Don Bluth creation. Don Bluth directed the animated films The Secret of NIMH (1982), An American Tail (1986), The Land Before Time (1988), All Dogs Go to Heaven (1989), Rock-a-Doodle (1991), Thumbelina (1994), A Troll in Central Park (1994), The Pebble and the Penguin (1995), Anastasia (1997), Bartok the Magnificent (1999), Titan A.E. (2000), and The Wild Thornberrys Movie (2002).