The recent release from Eureka is locked to Region B, but if you want to spring for the prior release from Fox, that appears to be region-free (the limited edition steelbook).
https://www.amazon.co.uk/Cocoon-Limited-Steelbook-Don-Ameche/dp/B00GB5WOR0/ref=tmm_blu_title_1?_encoding=UTF8&qid=&sr=