The Glass Shield (Charles Burnett) Rating: 2.0 Charles Burnett is an important and underrated director, so I'm dismayed to say that I found his latest film immensely disappointing. THE GLASS SHIELD has a few provocative ideas, and there are scenes, here and there, that suggest the complex, incisive movie this could have been. But most of the script is formulaic hogwash, and Michael Boatman's protagonist is so impossibly naive that one sometimes wonders on which planet he was raised. The evil, racist, sexist, anti-Semitic cops lack only handlebar moustaches and sinister black capes. None of the subtlety Burnett displayed in TO SLEEP WITH ANGER is evident here, sadly (especially not in Lori Petty's shrill, grating performance as Boatman's only friend on the force). Great opening credit sequence, though.