It is not real 4K in any material way due to having a final master at 2K. Studios have upscaled the 2K image to 4K and retouched the content for your 4K UHD TV. You should see some visual improvement over a standard 1080p Blu-ray. Check the information below to see if the studios have upgraded the video with HDR or added immersive Dolby Atmos or DTS:X audio tracks.
A story of a family across four generations, centered on the girl who becomes the woman (Jennifer Lawrence) who founds a business dynasty and becomes a matriarch in her own right. Facing betrayal, treachery, the loss of innocence and the scars of love, Joy becomes a true boss of family and enterprise.