A very important demo video I also found on reddit is this one [0] that's a fairly generic series of action scenes of a raid leading to a gun fight. The individual scenes are look mostly fine, notable exceptions being the muzzle flashes and nonsense guns in a few shots, but the connecting flow is nonsense if you look at it even a little. It has some of the consistency issues that are a bit of a halmark of AI videos, the interior size and layout of rooms and vehicles morphs and shifts from 'shot' to 'shot', they get out of the vehicle twice, etc. The wheels really come off in the more actiony scene though with the pace feeling very plodding for what would be an intense scene in even a moderately competitent human editor. Also some of the 'cops' wind up shooting each other in one scene which was a funny mistake.

[0] https://www.reddit.com/r/ChatGPT/comments/1kru6jb/this_video...