An American Tail : Fievel Goes West had only one computer-generated shot , the rest was hand-drawn .
Apart from one computer-generated pick-up shot of the valley 's ground , all of the film was hand-drawn animated ; and the process was so intensive that it took at least one week to complete a minute of animation , around sixty artists to paint approximately 230,000 cels , and a week for a single animator to finish three seconds of animation .
An American Tail-COLON- Fievel Goes West