This is AmazonJP exclusive Dunkirk 4K steelbook. I was lucky to be able to pre-order this item in time because it quickly became out of stock. Now you can only buy copy from third party seller.
Matte finish with spot gloss on spark and title, which is very nice.
3 disks included: 4K ultraHD, Blu-ray and bonus disk. I was disappointed that the tray only holds 2 discs. The bonus was put into a paper case.
Number of Disk：3 (4K UHD+2D+Bonus disk)
Region code: Free
Audio: English 5.1ch DTS-HD Master Audio, Japanese Dolby Digital 5.1ch
Subtitle: English, Japanese