This article is from the Fencing FAQ, by Morgan Burke with numerous contributions by others.
Instructional video titles can be found in the catalogues of
several fencing equipment suppliers (see section 3.5).
The last time I checked, these included American Fencing Supply,
Triplette Competition Arms, and Physical Chess. The same sources
sometimes have videos with theatrical or period fencing
Videos of competitions are available from some of the same fencing
suppliers, and also occasionally directly from national fencing
associations. http://www.fencingfootage.com offers a selection of
competition videos, taped by both professionals and amateurs.
See section 3.5 for movies and entertainment videos.