By and large, documentaries are supposed to make you stroke your chin and ponder the world's weightier issues, like the Health Care Crisis, the Financial Crisis, the Hurricane Katrina Crisis ... Heck, someone should do one about the Crisis Crisis. We obviously have enough material.

That's why Chris Rock's'Good Hair' is a welcome relief from your average doomsday doc. Ever since Rock's young daughter innocently asked him, "Daddy, how come I don't have good hair?," the comedian set out to investigate the phenomenon of the African-American hair experience.