Michael Craig Ruppert was an American writer and musician, Los Angeles Police Department officer, investigative journalist, political activist, and peak oil awareness advocate known for his 2004 book Crossing The Rubicon: The Decline of the American Empire at the End of the Age of Oil.

Collapse, directed by Chris Smith, is an American documentary film exploring the theories, writings and life story of controversial author Michael Ruppert (1951–2014). Collapse premiered at the Toronto International Film Festival in September 2009 to positive reviews.