Broken frame rate
Criterion transferred The Unknown at a little under 23fps and encoded at 1080i. The motion should be perfect, right? Wrong! Somebody messed up and used a 24fps timeline, then exported at 1080i60. Notice how the motion stutters in the top sample below. The whole reason to use 1080i is to prevent that!
After deinterlacing, we can easily see the uneven, broken pulldown, worse than most silents authored at 24fps. Below screenshot is of a tool I wrote to help delete duplicated frames. What you see on the right is a long list of frame numbers. All frames highlighted in red are duplicates and can be safely deleted.
Encoding silents to 1080i60 applies its own unusual pulldown. So, the result of working in 24fps and exporting at 1080i60 is that two different pulldown patterns compounded to create terrible stuttering.
Poor retouching
Frozen cloning doesn’t match:
