I have a Blackberry Z10 updated to the latest version of the Blackberry 10 OS - 10.3.3.1463
This page says I can play MOV files (I have downloaded a file from informit.com that plays on my Windows 10 mobile phone):
https://developer.blackberry.com/develop/supported_media/bb10_media_support.html
However, when I click on the file in File Manger I get this error message:
Error
This file contains an unsupported media format.