@Collector03601 You're right, there are a number of great posters out there for this film. It's obviously subjective but my favourite for the Full Slip would be this one.
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My one concern is that this is a Warner title and that particular studio has been exceptionally controlling when it comes to the artwork that it is prepared to authorise for its releases.
Looking through my collection, there have only been two previous Warner titles in the FAC, "Heat" and "Interview with the Vampire", for both of which Warner was only prepared to approve Full Slip artwork that was identical to that of the actual Steelbooks. Also, if I remember correctly, "Interstellar" was going to be included in the FAC but the release was cancelled because Warner refused to approve the proposed artwork.
However, given the apparent ease with which FA was able to secure approval from Warner for its forthcoming release of "Black Mass", it looks as though Warner may have modified its previous intransigence, which can only be a good thing given how extensive its catalogue is, including as it does the classic libraries of both MGM and RKO. Now there's food for thought, FAC editions of "Ben- Hur" (1959) and "Citizen Kane" (1941) to name but two.