In one of the few historical lapses in an otherwise superb film, Churchill is wrongly portrayed as seriously conflicted and about to consider the deal with Mussolini -- until he takes a subway ride and rediscovers the defiance of the average Londoner. The subway scene is pure fantasy.
Trump has ACTUALLY managed to tap into...
...the defiance of the AVERAGE American. !!
Yes, the English have a strong affection for the "King amongst commoners" - in this case PM - device in literature.