Jill Bearup posted a video about this a while ago, showing a short and the original side by side: https://www.youtube.com/watch?v=kd692naF-Cc (note the short is shown at 0:31)

Edit: The changes made by the ai are a lot more vissible in the higher quality video uploaded to patreon: https://www.patreon.com/posts/136994036 (this was also linked in the pinned comment on the youtube video)