A real Who’s Who of British character actors flesh out the supporting cast — Roger Allam, Simon Russell Beale and Mark Addy among them — of this film from “The Madness of King George” Nicholas Hytner and the screenwriter Alan Bennett, whom he collaborated with for “The Lady in the Van.”

A bit of WWI sentiment for the holidays? “The Choral” opens in the UK Nov. 7, in the US not long afterwards, we trust.