The exe seems to be identical to the legit version so you should be able to use the fix I posted over here
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Hello guys. So I've been enjoying the game on 2560x1080 thanks to the great Wintermance, but the cutscenes were still in 16:9.
However, I just found out that if you pause during a cutscene and resume back in, the cutscenes become ultrawide. I don't know if it'll work on other resolutions, or even if it'll work for other 2560x1080 users.
If anybody has the time, could you please check if it works? I hope this information can lead to a fix, and until then, may it be a temporary solution. (I pause whenever a cutscene is about to start and resume right back in and it's almost perfect.)
EDIT: Here's the youtube link for anyone interested in seeing it working
https://youtu.be/95GKsTfO5goSo I've been trying to pin down what causes the cutscene black bars to go away after a pause but I've had no luck. It looks like "ACIII.exe+22BFB60" represents the horizontal value of the aspect ratio when in cutscenes but when you change that from its default 1.7778, it ends up stretching the in-game UI too. You can get around it somewhat by offsetting the UI back to the center but then you have a centered but stretched in-game UI. Not really an ideal solution when the pause trick preserves the correct aspect ratio for the UI and widens the game aspect ratio for the actual cutscene.