Killer Joe

Why oh why was Clarence Carter's song "Strokin'" played not once, but twice in the movie Killer Joe?  And, speaking of Killer Joe, that movie was coo-coo for Cocoa Puffs.  Nuts.  Crazy.   I'm still trying to figure out what that tomfoolerly was about.  But, one thing that was interesting to me was the portrayal of poor white folks.  You rarely see these kind of lower-class white people depicted in movies or on television anymore, but they're out there.  Hollywood, I guess, just doesn't want you to see them.