The wife rented it on our cable and we watched it over dinner last week. Granted our screen is small and the audio not that great but I think the movie would have been much better with subtitles. Oldman was very good. I had anticipated that the timeline of the movie was longer than it was.
Subtitles wouldn’t have given the movie any benefit. The voice of Gary Oldman imitating Churchill was priceless. His delivery made it work plus the great makeup on him.
Subtitles or Captions? If you used a cable box to watch it. You may not know how to turn closed captions on. It is not always obvious how to turn them on. I use a TIVO which is very easy but I have a Spectrum(Charter) box and you actually have to turn the Spectrum box off and go into a hardware setting to turn them on. You can customize them from there. the streaming services like Netflix and Amazon Prime let you st them in your user settings.
I have had to use Captions for over 10 years. Hearing aids or headphones help but not enough so I have just learned to have captions on everything, even Youtube has pretty good software.