As for the documentary's content, Arnold and Milius are engaging and charismatic as always in Unchained, and it was great to see the rest of cast and hear their comments after nearly 20 years. It was also great to see others such as Gerry Lopez and James Earl Jones. Lastly, I'm glad they discussed Robert E. Howard, Conan's creator, and gave some insight into how the barbarian came to be.
Now, if I had to offer some criticism, it would be how the documentary completely neglected William Smith (Conan's father) and Valérie Quennessen (the princess). I was really disappointed that they didn't interview William Smith and get his thoughts on the experiences he had making the film. Furthermore, I was saddened that they didn't mention how Valérie Quennessen died tragically in an automobile accident approximately 7 years after Conan the Barbarian in 1989.
Other than that, I found the documentary insightful and very entertaining. Don't miss it.