[An] overly long documentary that, while interesting, skips over some important details in the past decade or so of Ngoy’s life.

A fine if erratic documentary anchored in a food-business phenomenon.

It's a dizzying saga of ups and downs, and of one of this nation's most beloved sweet treats, and a fascinating tale of sacrifice, success, and hubris.

The Donut King is replete with lively, energetic characters and important social history, but I think the filmmaker could have drawn from her material more insight into the American Dream.