The premiere Tuesday included hours one and four of the HBO documentary, "If God Willing and Da Creek Don't Rise." It airs on Aug. 23 and 24. Among those attending were Mayor Mitch Landrieu and New Orleans Hornets star guard Chris Paul.
Lee also produced "When the Levees Broke: A Requiem in Four Acts," after Katrina struck in August 2005.
In the new movie, Lee returns five years later to see how plans to rebuild New Orleans have played out.
It also touches on the Saints' Super Bowl victory and details the impact of the massive Gulf of Mexico oil spill on people who have yet to fully recover from the hurricane.