Sam Mendes is an opponent of Brexit. In 2017, he stated: "I’m afraid that the winds that were blowing before the First World War are blowing again. There was this generation of men fighting then for a free and unified Europe, which we would do well to remember."

Maybe I've misread history. I thought Britain (and allies) were fighting for a 'free' Europe, and Germany were fighting for a 'unified' Europe.
Doubtless an oversimplification, but so was Mendes' comment.