Undefeated doesn't reinvent the sports documentary, but it does add depth to the genre with an unyielding focus on the people over the game. I've never seen a sports doc care so little about the actual sport. Like Hoop Dreams (a film it uses as a clear template), Undefeated makes its subjects so dramatic that even this hater of all things sports wants so desperately to see them succeed. It's not a great movie, but Undefeated is nevertheless a fine documentary about the struggle to find some new hope in the wake of the death of the American Dream.
My full review is up now at Spectrum Culture.