You have a widescreen TV in a 16:9 mode? That would explain a lot, because if that is the case, then it doesn't matter if the disc is really working properly anamorphic or not.
Anyways, I claim it isn't a proper anamorphic disc. ;D It has been done correctly (the image on the disc is stretched vertically) but the stuff is missing which makes the player... or tv?!... recognize it as anamorphic.
I checked now again and my disc is definitely letterboxed 1.85:1.
When I watch anamorphic discs, the widescreen tv and dvd player automatically just stretch the image horizontally as they are supposed to (no matter what mode my TV is on, although I always have it on "auto"), and tell me it is "WIDE". But this disc works exactly like a letterboxed 1.85:1... the TV in "auto" mode zooms the image to fill the entire screen (making the aspect ratio remain 1.85:1) .
If I put my the TV to 16:9, then the aspect ratio is correct 2.35:1 because 16:9 mode just stretches horizontally no matter what kind of image (anamorphic, non-anamorphic, fullscreen).
The disc is almost a proper 2.35:1 anamorphic but one small detail is missing. I think. I'm quite certain. ;D
There won't be any problems with widescreen TVs. But I do not know if people with regular TVs can see it correctly... maybe by changing the player to think that the TV is 16:9 widescreen when it is not?