Auto-Center Play Window

It is a bit inconvenient to have to manually center the play window after a movie launches. It would be super nice if the movie would be automatically centered on the monitor screen. On my 4K monitor I always have to drag the play window to the center of the screen when a movie starts to play. Could we have this fixed in a future release? This issue was been existent for awhile and also experienced it with my 4K iMac.