By Youyoung Lee
Updated September 28, 2007 at 04:00 AM EDT

Penned by two ex-instructors, this mockumentary examines what transpires in a teachers’ lounge. Chalk‘s humor is dry when drawing on stereotypes — like a coach’s claim that ”not all PE teachers are gay” — but the film also purveys true pedagogical gems: Painfully aware of their role-model status, the educators must justify their own shortcomings when confronted with failure, or worse, that of their students. EXTRAS Commentary from the creative team and ”My Most Inspirational Teacher” essays from the cast and crew earn extra credit. A-