Philadelphia high school teacher Wilma Stephenson is a drill sergeant of haute cuisine whose long-suffering, low-income black proteges routinely win life-changing scholarships. She definitely deserves a subtler cinematic testament than this lazily inspirational documentary. Video makers Jennifer Grausman and Mark Becker recoil from their politically incorrect subject, who routinely berates her students for their “ghetto” manners and instincts, and shift their attention to three of her front-running students, pumping up the suspense over who’ll advance to the next round of vocational training. 99 min.