Great movie, very minor mistake

Rating: 8/10 (28 July 2017)

This movie is one of my favorites, it is good in all aspects.But I just noticed a small acting mistake: in Billy's funeral, the second after the third fire shoot the big guy who was standing behind Sullivan got shocked by the noise, he smiled and looked a the camera! I think that was easy to avoid the existence of this mistake in such an excellent movie.