Documentary movies are by definition nonfictional--that is, they show things from real life rather than being based on stories. There are many Documentary Films, including recent ones like An Inconvenient Truth and Sicko and older ones going back to the early 20th century. One critic's list of "The 50 best documentaries of all time" is linked below and is a good reference.
The other link below is to the Wikipedia article on documentary movies.
"A Night with..." (2003). Made for television.
who makes film on nonfictional motion picture intended to document some aspect of reality, primarily for the purposes of instruction, education, or maintaining a historical record.
Documentary films constitute a broad category of nonfictional motion pictures intended to document some aspect of reality, primarily for the purposes of instruction or maintaining a historical record.
No. These movies are in many genres based on whether they are a documentary or some sort of fiction with a story that lumps them into drama, comedy or childrens
List of historical documentary movies here: http://documentaryaddict.com/history-documentaries
I could find no documentary on the Countess, but there have been several movies that were based on or inspired by the Romainian serial killer.
1997 produced some movies that won Oscar awards. Some Oscar winners were, "When We Were Kings" for feature documentary, "Koyla", for foreign film, "The English Patient" for best picture, and "Quest", animated short film.
There are several different types of documentaries. Some of these are, expository documentary, observational documentary, and the observational documentary.
a BBC show/documentary called "The Future Is Wild"
Yes
Fictional.
Inkheart is a fiction story :)