Originally Posted by iansilv
I am wondering if these two AR labels are just tossed around and mean the same thing in reality- or if movies that are marked as being these aspect ratios are in fact different. Example- Batman Begins is 2.35 and Casino Royale is 2.40.
Anyone with a CIH setup have some input on how much difference these two ARs have on their screen and how they deal with that difference?
2.35 doesn't really exist in modern filmmaking. It's a misnomer held over from the intermediate days of anamorphic photography when the aperture size was 2.35 and there were issues with the frame splices being visible on projection. People still casually refer to it as Cinemascope or 2.35, when in really modern films are neither (Cinemascope is somewhat of an outdated term, the original 'scope was spec'd at 2.66:1 but ended up with the soundtrack being more 2.55:1, but is still casually used to describe modern 2.39 films). The SMPTE standard for both anamorprhic (Batman Begins
) and flat Super 35 (Casino Royale
) or digital crops (The Social Network
) is today 2.39:1 or 2048x854 resolution at 2K.
An anamorphic film should be presented as 2.39 unless the top and bottom are slightly cropped off for some reason. It gets trickier with flat films because they can technically be cropped to anything (though the release prints are still blown-up and anamorphised for theatrical projection, thereby making them 2.39). Since almost all Hollywood movies these days go through a DI process it's almost inexcusable for there to be discrepancies in aspect ratios for home video deliverables considering they are often struck from the 2K or 4K digital master and projection isn't an issue. There will
be aspect ratio discrepancies with older films though.