Knowing nothing about Michael Heizer (I am Australian) or his sculptures/public art installations, I did not know what to expect from this 90 minute documentary about the installation at the Los Angeles County Museum of Art, but it was a great "ride" along the road (literally, in much of the film) to see how the idea was made, when it was started, other works he had done, including some great "holes", mostly in USA. The cinematography was really good, and varied between landscape scale and personal interviews. The directing and the narrating were first class, and we almost felt that we were part of the journey even though we are a long way away. Particularly enjoyable were the encounters with lots and lots of friendly or bemused locals along the way. If you like feature length documentaries, I think this one is a big screen documentary, that's for sure.