This time Errol Morris - director of classic documentaries like “The Thin Blue Line” and “The Fog of War” - had a camera pointed at him.

Kevin Macdonald’s “A Brief History of Errol Morris” was released in 2000, but I just found out about the 45-minute doc recently and watched it on YouTube. It’s cool to listen to Morris’ talk about his own work and learn how he went from University of California, Berkeley dropout to detective and worked as a Werner Herzog production assistant before becoming an innovative filmmaker.

Macdonald probably got to sit down with Morris because by then he had directed the Academy Award-winning “One Day in September” (1999), a documentary about Palestinian terrorists taking Israeli athletes hostage at the 1972 Olympics in Munich. More recently Macdonald directed the narrative feature film “The Last King of Scotland” (2006).

The title Macdonald chose for his Morris doc is a reference to “A Brief History of Time” (1991), a film Morris made about the wheelchair-bound physicist Stephen Hawking.

My favorite part of “A Brief History of Errol Morris” is the interview with Philip Glass. The composer tells how Morris showed up at his hotel door to request more music for “The Thin Blue Line.” This happened after Glass had moved on to another project having just spent months on end poring over the soundtrack in order to please the obsessive Morris.

Check out Macdonald’s doc if you get a chance. You’ll learn a lot about filmmaking and be introduced to Morris’ catalog of work, which will be watched for decades to come.