Video Fakery Watch

David W. Mantik in "The Great Zapruder Film Hoax":

Almost from the day that the film projector was introduced for public use, the faking of film became a common practice. Raymond Fielding (1) reports: "Apparently there was not a single major producer in the period 1894-1900 that did not fake newsfilm as a matter of common practice". Paul Smith (2) adds that these early fakes consisted of re-creations of news events (using either actors or sometimes even original characters) or fabrication of events such as soldiers pretending to be in battle. These were then sold to the public as actual scenes of the Boer war. The first public discussion of the issue of faking apparently occurred in August 1900 under the title "Sham War Cinemotograph Films" (2).

References
1- "A History of the American Motion Picture Newsreel", unpublished dissertation, University of Southern California,1961

2- "The Historian and Film", 1976

Mantik also points to the faking of Hitler's victory jig in France, which is a great anecdote with obvious implications regarding WWII propaganda.

In any case, in this context, it seems quite obvious that the 9/11 airplane videos were a very effective use of such fakery.