Emmy award-winning filmmaker George Hickenlooper died yesterday in Denver while there for the premier of his new film, Casino Jack. Hickenlooper won an Emmy for Hearts of Darkness: A Filmmaker's Apocalypse, about the making of Apocalypse Now. He was 47.

The mayor of Denver, who is also Hickenlooper's cousin, said he died of natural causes. Here's a clip from the excellent 1991 documentary, Hearts of Darkness: A Filmmaker's Apocalypse:

[Image via Getty]