If you loved Doraemon y el ejército de los hombres de hierro, try Doraemon Animal Planet
Un puente entre una película que ya has visto y una que casi nadie ha cruzado. Esto es lo que comparten, y lo que la segunda hace que la primera no hace.

Doraemon y el ejército de los hombres de hierro

Doraemon Animal Planet
Lo que comparten
Both films are directed by Tsutomu Shibayama, and they both carry the cozy, playful, uplifting mood tags, and they sit in Adventure / Animation / Family / Fantasy / Science Fiction territory. If that's the register that drew you to Doraemon y el ejército de los hombres de hierro, the second film will land in a comparable space — through a different lens.
What Doraemon Animal Planet is
The premise is simple, almost charming in its directness. A pink fog transports Nobita and company to a world populated by evolved animals. They assist the locals in tracking down the fog's source. It is, as advertised, a movie about cartoon animals.