The depiction of an actual event in dramatic form, using actors, actresses, and a full screenplay. This shouldn't be confused with a documentary, which is a filmed, but not dramatized, account of an actual event as it happens.
A filmed dramatization based on fact that combines documentary and fictional elements. In the production process, "based on" allows the creators of the text wide creative latitude and a docudrama is, at best, a skillful representation of a real person or event.
A docudrama (also docu-drama, drama-documentary, drama-doc or docu-fiction) is a type of drama (usually a film, television show, or play) that combines elements of documentary and drama. It may consist entirely of actors performing recreations of documented events, or (in the case of film and television docudramas) may combine that with contemporaneous footage of the events themselves.