Check this out...
This brand new italian trailer for the re-release of gbu from the Leone film group looks nothing like the new mgm bluray...in fact I think it looks different from the mondo disc too.
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Here is a quick and dirty comparison between the mgm 2014 blu, the italian mondo blu, and the new trailer released by the Leone film group. The footage from the Leone film Group trailer looks slightly different from the mondo release. Of course the MGM just looks terrible every time you compare a shot with blue sky!
https://imageshack.com/i/nflnpwdj