Color profiles get even more complex when printing, each paper, even each batch of paper and each batch of ink will be different and need a fresh profile. In short, buy a screen calibration device and do it, fairly often too. And as said, if you are delivering to DCIP3, then set the display for this, if delivering for something more common, then you should set your display or at least a profile (lut) to do a conversion from the video player through to your display. And before someone says it, ICC profiles are just a Look Up Table, always have been.
Now if Premeire is messing with things, then yes you need to complain to them.
Now if Premeire is messing with things, then yes you need to complain to them.