Brad PittIt took Angelina Jolie to change Brad Pitt's tune on marriage (they won't get hitched until gay couples can do the same), and it's taken a catastrophic oil spill to give the star pause on his death penalty stance, according to a new documentary set to air on HBO.

In 'If God Is Willing and Da Creek Don't Rise,' a film by Spike Lee marking the fifth anniversary of Hurricane Katrina, the actor-activist said BP oil executives like the much-maligned Tony Hayward should possibly pay the ultimate price for the Gulf oil disaster.

"I was never for the death penalty before -- I am willing to look at it again," he remarked.

Pitt is featured in the doc because of his efforts in New Orleans to build 150 affordable and sustainable homes in the storm-ravaged city. 'If God Is Willing' was designed to be an up-beat followup to Lee's glum 2006 film 'When the Levees Broke,' and was to detail much of the progress in rebuilding the city and end with the Saints winning the Super Bowl.