Why Aren't There Any Leading Black Actresses/Actors in Movies?

Now I'm sure there are some black actors/actresses that are in movies but it is always the same type of movies: either tyler perry films or "poor" black family in the ghetto trying to survive. I'm sure that not every black person in America is struggling that bad. The only time there is ever a black actor/actress is only when they are a supporting character and they barely ever get any time on the air. And the only well know black actors/actresses are Will Smith, Hale Berry, and Denzel Washington--All three haven't really done anything in the past 3 years anyways. I also wish there were more YOUNG black Actors/actresses too. I mean a lot of young hollywood star in a lot of movies (all white): Kiera Knightly, Kristen Stewart, Michael Sera, Shia Laboef, Mischa Barton, Ellen Page, Zac Efron, Scarlet Johanson, and THE LIST GOES ON! I really can't think of ONE black actor. Sorry for Ranting but this is something that has been bothering me for quite some time.