The segment "Oz Holed" implies that Ozz Fest toured California in August 2001, when in fact it was no where in the state during that month.
There is no "pica syndrome" or "pica disorder", it's simply called "pica".
In the "Guitar Zeros" segment, Chinese head-banging buddies Lee and Feng are seen listening to their music in their room after dark. But after the two young men jump to their deaths, it is clearly midday outside.