I bought a 4K copy of Despicable Me 3 and got around to watching it last night. You do not have to guess if the Dolby Vision is on. It is noted at least 3 times in the upper right hand corner of the screen. Then when the movie plays, It is a fabulous picture that is almost real in parts and somewhat 3D. If you have a 4K TV and disk player, I highly advise you to get this 4K movie for a demo at least if you do not like Minions.