Amblimation was the British animation production subsidiary of Amblin Entertainment. It was formed by Steven Spielberg in May 1989, following the success of Who Framed Roger Rabbit (1988), and after he parted ways with Don Bluth, due to creative differences. It was stationed in what was originally the D. Napier & Son factory in Acton, London and had 250 crew members from 15 different nations. It only produced three feature films: An American Tail: Fievel Goes West (1991), We're Back! A Dinosaur's Story (1993), and Balto (1995), all three of which were composed by James Horner and distributed by Universal Pictures. The company's mascot, Fievel Mousekewitz, appears in its production logo.