The Rex Dangervest Story

The Rex Dangervest Story is an American-CGI animated short created by Phil Lord and Christopher Miller. It is set to premiere in August 6, 2019.

Transcript
It begins in space where Rex was eating a sandwhich.
 * Rex: (notices the viewers) Oh, hey there.. Let me tell you the stoy how i became me.. I know i'm the future emmet. But still.