My wife and I watched a movie on Blue Ray. It was "Brooklyn's Finest". In one scene, the two cops are finished with their morning meeting at the office and are out on the street patrolling. Richard Gere's character pays close attention to 2 Muslim men on the sidewalk praying. I thought maybe it was a plot device that these guys were going to be causing problems. They had the sun to the backs of their heads meaning they were facing West in the morning. They never came back to that. The characters had no other meaning in the movie.
I reported it to this website and they acknowledged the blooper. I'm famous.
http://www.moviemistakes.com/film8419