Here is a list of movies that I would recommend.
(maybe I will include reviews for some of them.)
Conclave
2022Everything Everywhere All at Once
2020The Father
2019The Farewell
Parasite
Bad Genius
2015Eye in the sky
2012Moonrise Kingdom
2009Moon
Pandorum
Doubt
2006The Prestige
2004Kill Bill Vol.2
2002Spirit
Equilibrium
Phone Booth
Rear Window
I also have an unhealthy love for movies that revolve around phones.
This started with the movie Phone Booth (2002).
Many of these movies showcase how a single actor on a single set can captivate the audience:
simply by his voice, facial expressions, and a well written script.
While I tremendously enjoy these movies, I may not generally recommend them.
Cellular (2004)
When a Stranger Calls (2006)
The Caller (2011)
The Guilty (2021)
Locke (2013)
The Black Phone (2021)
Mr Harrington's Phone (2022)