I am wondering if this will be worth watching.
But I dont have much faith in ITV doing a good job.
So much of what they do is quite weak in terms of the script, and relies on creating impressions.
Stars Jason Isaacs
https://www.itv.com/watch/archie:-the-man-who-became-cary-grant/7a0170/7a0170a0001
I think all episodes (4) are available on line
(But I think ITV did the series Nolly which although a bit smaltzy was okay!)