Here's a part of the Downton Abbey Reunion you asked for!

Rating: Null/10 (18 August 2018)

It was sheer joy to see Lily James, Penelope Wilton, Matthew Goode and Jessica Brown Findlay get together for a movie, although you don't get a chance to see all of them in a single scene (not giving any spoilers). Lily James is fast becoming one of my favourite actresses. Her expressions are full of life. Something that I first noticed in Downton Abbey, and then in Cinderella, the recent Mamma Mia 2 and now this. I felt that Jessica Brown Findlay's role could have been extended a bit. I had the feeling it was made shorter on the editing table. Katharine Parkinson continues to be cast in supporting roles in which she outperforms (Humans, Honorable Woman, etc.) I can't wait to see her in a leading role.
All in all, this is a pretty sweet film with a tragic flashback. It was nice to see a WWII themed chick flick for a change. Give it a shot, you'll surely enjoy it.