“When the Levees Broke: A Requiem in Four Acts”

According to the New York Times, Spike Lee is about to release a documentary on Hurricane Katrina. HBO will show the first two hours of “Levees” on Aug. 21 at 9 p.m., the last two on Aug. 22 at 9 p.m. It will be shown in its entirety at 8 p.m. on Aug. 29.