Well, with no takers I feel compelled to reveal the answer.John Upham wrote: ↑Sun Aug 29, 2021 7:05 pmWhich mainstream "Hollywood style" film includes footage of an analogue chess clock being operated by two persons in a non-chess context?
It is Secret Window
https://en.wikipedia.org/wiki/Secret_Window
The film is based on the novella by Stephen King entitled Secret Window, Secret Garden
Amazon Prime won't let me capture the window so I will improvise later.