You can watch it on the Japanese website version of Amazon just type in Shimajiro and the picture title cover shown on imdb should be shown on Amazon, if you get it on DVD, remember to have a region free DVD player. If you watch it on Amazon Prime, you'll have to have an Amazon account for the Japan version.
Sadly you cannot see this movie on the English website version of Amazon or on Amazon Prime as it's not available. Also this movie is in Japanese so there's no English dubbing.
Sadly no, this Shimajiro film was released in 2 languages Japanese and Korean. There is no English Dub available in United States of America, Canada, United Kingdom, Australia, New Zealand.