How do I copy an Amazon Prime movie download to sd on my Sumsung tablet?

[AC Question]

Just downloaded my first movie via Amazon Prime and this is easy. But I now want to copy it to my sd to save storage space on my Samsung Galaxy Tab A. Where is the file stored and how do I copy it? Or better still how do I save it to sd when I download?

 

[B. Diddy]

Welcome to Android Central! Did you purchase the movie, or is it just a rental? If it's a rental, I doubt you can copy it anywhere--that could increase the risk to Amazon of piracy.