Compare this to the reactions posted in the discussion about the upcoming Brian Wilson biopic when behind-the-scenes photos were posted of a beach scene showing a car.
It's completely different because this a movie about James Brown, not the Beach Boys. Their appearance is just a little surprise for people who know about the T.A.M.I. show. I cannot emphasize enough how little a part they play in the film.
Now, if James Brown had been walking down the aisle with a tweed jacket with elbow patches, suspenders, and Beatle boots, then we would have a problem because this movie is about
him.