Are all of Curtis's documentaries dejected and negative in their outlook?
Yes
No
The majority of them are
Only his recent documentaries
Answer
Curtis's documentaries are not all dejected and negative in their outlook. For example, his documentary "The Century of the Self" is a critical look at the rise of the advertising industry, but it also provides a nuanced and balanced view of the subject.
Unveiling the Mind of Adam Curtis: An Engaging Quiz on the Legendary British Documentary Filmmaker